01x05 - Looking into the Minds of Evil

[bunniefuu]

[The drama was based on a book, and all people, organizations,]

[locations, and incidents in this drama are fictitious.]

[It was filmed in accordance with COVID-19 prevention guidelines.]

[The crime-related scenes were staged.]

[This drama may contain disturbing and brutal scenes.]

Right before the Chuseok holidays...

I'm sorry I was late. There was heavy traffic.

No, it's fine. You picked me up when I had just gotten out.

Hey, my cousin got married pretty late.

So everyone at the wedding cried.

And my mother wanted to pack up some food from the buffet.

Look at all this food she packed for me. My goodness.

This sure makes us feel like normal people, doesn't it?

I went to a wedding on Saturday.

And we're stuck downtown in the middle of a congested road.

It'd be perfect if only we weren't headed to a prison.

Seoul Tollgate announced that cars leaving Seoul...

Hey. How do office workers wear ties every day?

This is so suffocating.

And the Honam Expressway...

Gosh. Maybe, I should have brought some clothes to change into.

Do you want to switch shoes at least?

- No, it's okay. - By tonight...

- Do you want some rice cakes? - What?

- Open your mouth. - I'm good.

- Open up. - It's expected to take longer.

- There. Chew it. - Hello, everyone.

Yes. That's it.

Let's go.

[Seoul Detention Center]

- Gosh. Isn't it nice? - Gosh.

It does look big and nice.

I spent two months' salary on this.

It better look fancy.

You're spending more than you're earning.

You need the right tools to put your skills to use.

Hey, this kind of looks lame.

I'll put it away.

But I'm more comfortable with it. Let me use it.

- You want to? - Yes.

- Okay, it's all yours. - Thank you.

All right. Hold on.

This should be...

Should we put this here?

[Keep quiet]

Inmate 4709, you have visitors.

Who's here?

Look at him dusting off his feet again. Gosh.

- That fool. - Just go, will you?

- Idiot. - Gosh, seriously.

[Do not flush leftovers down the toilet.]

- Hurry up. The officer is waiting. - Goodness.

Gosh, that fool.

- I'm sorry, man. - What? What the...

You can't blindside me like this.

I can't even stand the way he walks.

- Goodness. - That idiot.

What's with him?

Well, we're not here to interrogate you, so relax.

Did you put on a suit to meet me?

Why do you ask?

I feel special.

But it's all over now, isn't it?

Do you think it's over?

You caught me.

Mr. Cho, we still have...

many questions for you.

But I told you everything last time.

That lady too. I told her everything.

She is a detective, not a "lady."

We want to hear more about you, not about the case.

You could tell us about your childhood...

or how you feel. Feel free to tell us anything.

It's just for our record, so don't worry about it.

Right.

Well... Is there anything you'd like to tell us?

It's okay. You can tell us anything.

You're not interrogating me, but you want to hear my story?

- That's right. - No one wants to hear my story.

- What's your reason? - We visited your place.

My place?

Yes, it was very clean.

Everything was neatly organized,

even your socks.

I don't like it when things are messy.

I know.

So you must be having a hard time here.

Right?

Every day, you have to eat and sleep...

right next to strangers who committed all sorts of crimes.

It must be awful.

It is awful.

So...

why don't you...

tell us more about yourself?

The people here...

probably think that you're like them and treat you as one of them.

But in our eyes,

you seem a little different.

Well...

They don't even wash themselves often.

They stink, and the cell is small and filthy.

It's really driving me crazy.

Right, I'm sure.

So this was what we were wondering.

Perhaps you...

didn't actually intend to k*ll Soo Hyun...

That's right, I...

I never intended to k*ll her.

That is why we want to hear your story.

To find out exactly how different you are from the others.

You look like you've lost quite a bit of weight.

Have you been eating well?

Then why don't we...

eat something first before we start talking?

How are you feeling?

I got to have a proper meal for a change.

I wish every day was like today.

Do you regret it?

She was in the wrong place at the wrong time.

Are you talking about Soo Hyun? What exactly do you mean by that?

Blame her bad luck.

It's Soo Hyun.

Her name.

Lee Soo Hyun.

Had she not come to that place that day,

nothing would have happened to her or me.

Do you think...

it's Soo Hyun's fault that you ended up like this?

It is her fault for catching my attention.

I wonder what was on his mind...

as Cho Hyun Gil was watching such an innocent child.

Why does he feel differently from the rest of us?

Are you from Samcheonpo?

I don't hear an accent though.

I moved to Seoul when I was 15.

In eighth grade?

I didn't go to middle school.

I started working as soon as I graduated from elementary school.

What kind of work?

I worked at factories,

sold fish, and worked at butcher shops.

I did everything I was told to do.

I had to work all sorts of jobs too.

My family was very poor when I was young.

Since I'm the eldest son,

I had to help my parents on their farm...

and sell our harvest.

I did all sorts of things.

Detective, what did you say your name was?

My name?

I'm Kook Young Soo.

Detective Kook, then did you also quit school after elementary school?

I entered middle school a year later than everyone else.

I see. At least you went to middle school.

- You think you two are different? - What do you mean?

You were both poor, and both of you struggled.

But he attended middle school, so his situation was different.

My life could've turned out differently too.

Do you think that's why you ended up becoming a criminal?

Because you had to quit school?

Well...

I...

- Detective. - Yes.

Can you get me a soda?

I have a habit of drinking one after every meal.

[Please keep this cubicle clean.]

[If you have a dream, you can start afresh.]

[Korea Correctional Service]

She was in the wrong place at the wrong time.

Blame her bad luck.

Hey.

- Are you all right? - Of course.

Let's go.

You quit smoking.

Yes, what's up?

Why do you carry a lighter around?

Oh, this thing?

For emergencies.

I'm sure there will come a day when I'll crave a smoke.

If I don't have a lighter at that time,

I may seriously go crazy.

[Through the Darkness, Episode 5]

[Proposal: 1 Year Plan of Behavioral Analysis Team]

We just got started,

so let us do this for just one more year.

Yes, there's our proposal.

We'll work quietly so that you'll never notice us.

Right here. Please.

So please... Help me out.

Sit down.

- My gosh. - Just one more year.

This year's college entrance exam must have been rather easy.

- Arms down. - The cut-off scores...

for many universities went up by even ten points.

- Reported by Lee Yong Nam. - All done.

The college exam score cut-off for this year's acceptance...

for Seoul National University's Humanities Department had been...

- Salute! - We'll do our best!

[January 2001]

[March 2001]

[We will care for your family with love and sincerity.]

[True Correction, Bright Future, For a future with hope]

[May 2001]

A t*rror1st attack on the US...

put Americans and people around the world in great shock.

[September 2001]

One second.

[October 2001]

[November 2001]

[December 2001]

- Excuse me. - One second.

[Do not scrub in the bath]

[December 2001]

[January 2002]

- Yes. - If you give us one more chance,

we will repay your kindness with great performance.

Yes, sir.

[Extended by 1 year]

Thank you!

Today is a historical day.

Our dream of reaching the semifinals of the World Cup came true.

I still have a tough time believing it.

- Go, Korea! Hey! - Go, Korea!

All right!

- Go, Korea! - Go, Korea!

- Go, Korea! - Go, Korea!

[November 2002]

Good grief!

Hey, let him go. Guard!

You can take him away.

Darn it.

[December 2002]

I'm aware.

So why did you go that far and commit that crime?

My gosh, these detectives.

[New hope! 2003]

Although the temperature is well below zero,

the beach is filled with people...

waiting for the first sunrise.

I got some buns.

- The number of people... - Look at this.

My gosh.

[February 2003]

[March 2003]

[April 2003]

[July 2003]

[August 2003]

[Korean Beef Gopchang]

How long has it been since we had a team dinner?

Eat up while you can.

You may never see another day like this.

You can eat. I'll grill these.

It's all right. I'm an expert at grilling,

so I never let anyone else do it.

Well, I'll show you what I can do. Give it here.

No, sir.

Please just eat this. It's hot.

It's good.

Please evaluate my skills.

- I'll eat it myself. - My gosh.

- You should eat too. - Okay.

All right, then. Let's continue to hang in there.

Okay.

- Great work. - Bottoms up.

Weather newsflash.

The typhoon is heading north,

making many parents worried as they wait for their children.

Typhoon 14, also known as Maemi,

will cause strong winds to blow...

as well as heavy rain throughout the entire country.

The wind speed of Maemi can reach up to 60m per second.

It first headed to Taiwan,

then suddenly changed course...

and began to head to the Korean peninsula.

Honey, I'm home.

Wait, honey...

No.

Honey!

Honey!

What's...

- There was another one. - No, why...

[I wanted to take this woman, so I shut her mouth and took her.]

[She was already dead before I could do anything. I got angry.]

[Seoul Metropolitan Police Agency]

So do you know who the new chief is?

Sorry?

Oh, right.

What's wrong? What's with that face?

Oh, you're here.

Hey, good morning, Tae Gu.

Have you been well?

Why didn't you tell me?

You could've at least given me a heads up.

Everyone already knew.

I didn't need to do that.

Everyone already knew.

Everyone except me, who has to take orders from him.

I mean, I thought...

you already knew too, Captain Yoon.

I understand.

Goodness, hello.

I'm Kim Bong Sik, the new chief of the Special Crime Squad.

- Hello. - Nice to meet you.

I hope we all get along.

- Yes. - It's nice to meet you.

Let's grab some soju sometime.

- Sure. - Okay.

If you knew Kim Bong Sik was coming as our new chief,

you of all people could've let me know.

I thought you'd only get stressed if I told you ahead of time.

Also, nothing would change anyway.

Nothing could be changed,

so I happened to be the only one who didn't know?

No, that's not what I meant.

Well...

I'm sorry.

There's no need for you to apologize.

Forget it.

It probably wasn't easy for you either.

- Does the Analysis Team know? - The Analysis Team?

Back when they were at Jungbu Station,

I heard Song Ha Young...

once betrayed Chief Kim Bong Sik.

People in this field really love rumors,

don't they?

[Hwang Dae Sun, r*pe and mutilation m*rder*r]

Why are you back?

We still do not understand why you committed these crimes, Mr. Hwang.

[Keep quiet]

So we came...

to hear the story of your life, Mr. Hwang.

What story?

Well, can you share the stories of your childhood?

What will you do with the stories of my unfortunate childhood?

I guess you had lots of bad memories.

In that case,

can you tell me one thing that made you the angriest?

It's my dad.

He always beat me up without a reason.

He'd beat me up during meals,

and beat me for going to school.

There were days when I actually skipped school...

because he hurt me so badly.

Whenever he beat me, he stripped me down to my underwear,

then kicked me out of the house.

So I sat in front of the gate.

So if your neighborhood friends saw you,

they would've teased you a lot.

Kids would make fun of me until I went to middle school.

I'd beat them up too.

I never hung out with them.

Those emotions must have been tough on you.

And it must've been embarrassing that you weren't wearing clothes.

How did you usually deal with your anger?

There wasn't much I could do as a kid.

All I could do was k*ll animals because they couldn't talk.

I k*lled my next-door neighbor's cow with a sickle.

I caught a dog in my neighborhood...

and watched it jump and bark in the hot, boiling water.

Watching that got me off.

My father stripped me and kicked me out countless times.

So I still hate it when my body is exposed.

It infuriates me.

No matter how hot it is, I never wear shorts or short sleeves.

After you k*lled animals,

did you dismember them too?

Sometimes.

I tried cutting them up.

I learned cooking at a restaurant.

Using a knife to cut them into pieces was fun.

Your second female victim.

Is that why you cut off the flesh on her leg...

after you r*ped and m*rder*d her?

I don't know.

I wanted to cut it off when she was alive.

But she kept moving, and her blood splattered.

So I stopped for a bit.

After I k*lled her,

I sat next to her and tried to cut it off again.

But I don't remember much because I was drunk.

Then you took it home.

But no one saw you?

It was dripping in blood.

I bet it must've scared people.

Why? They wouldn't know what it was.

I thought it was meat for a second...

when I woke up the next day.

Which one is it? You don't remember? Or you don't want to talk to us?

It's both.

Must I tell you everything?

You said it wasn't an interrogation.

[Implement an improved reform system for the future]

- Good day. - Good day.

Hwang Dae Sun definitely shows the behaviors of serial K*llers.

Right. But why do you think he cut off the flesh on her leg?

It looks like he didn't know either.

I think his rage against his a*usive father...

developed into abnormal sexual behaviors.

Then his rage caused him to mutilate the body too.

Right.

Gosh.

Many organizations are trying to support flood victims...

from Typhoon Maemi which struck the Korean Peninsula pretty hard.

The civic organizations...

How may I help you?

[No smoking]

Is this the Behavioral Analysis Team?

- Yes. - Where's Song Ha Young?

Inspector Song? He's out for an interview.

"Inspector"?

Should I tell him you stopped by when he comes back?

["Sky, Wind, Star, and Poetry" by Yun Dong Ju]

He hasn't changed.

What brings you here?

Don't mind me.

Get back to work.

It's like nothing ever happened. This isn't fair.

What?

The weather.

The weather can't be this good. It's cheating.

The pain and sense of loss.

The suffering...

is only up to the victims to bear.

I bet some people are enjoying this good weather.

All right.

He's not even investigating the case. Why is he reading...

the case reports for the detectives?

Seriously. This nosy jerk.

Hey. When he comes back, I'll tell him you were...

You!

"Hey"?

Read what it says on my name card.

"Special Crime Squad Chief, Kim Bong Sik."

Are you blind?

I'm sorry.

You seem to have picked up bad habits from Song Ha Young.

You're still wet behind your ears.

No, I just mean this is the office for the Behavioral Analysis Team.

You need to tell me why you are here.

You are going to make me repeat myself.

You just mind your own business!

I'm back.

Have you been well, Assistant Inspector Song?

Right. I heard you're an inspector now. Inspector Song.

Goodness. You seem well.

What do you guys do here? Why are you dressed up?

Why are you here?

I don't expect you to give me a warm welcome.

But it's only polite to say hello when you see your superior.

Don't you agree?

Seriously. This team is full of rude punks.

Hello. I'm Statistics Analyst Jung Woo Ju.

Statistics analyst?

You guys have difficult titles here.

Dumb people won't be able to remember them.

What was it called?

Right. A profiler.

If you need to talk to me, let's talk outside.

I have nothing to say to you in private.

I just wanted to say hello since I was in the building.

And I wanted to check out what you do here.

Why is the door open? Did...

It's been a while, Captain Kook.

I've been transferred to the Special Crime Squad today.

We'll be running into each other a lot.

I look forward to working with you.

- Okay. - It was nice to see everyone.

Right. I bought this for you.

I almost forgot.

You still eat chocolates like a little kid, right?

We'll be seeing each other every day even if you don't want to.

Let's put our past behind us.

See you around.

All right.

Who was that?

Just as I heard, he's one rude cop.

I was wondering how great his career was going...

after he stabbed me, his mentor, in the back.

You've got to be kidding me. An inspector?

[November 1996]

Search every nook and cranny of the neighborhood.

He's wearing a black jacket with a hoodie and black sneakers.

Find him now!

I'm chasing a man who fits the description.

I'm sorry. I lost him.

Yoon Tae Gu, where are you?

Where are you?

Let go of me.

Gosh.

Darn it.

Jung Soo Chan.

You're under arrest...

for robbery, m*rder, and fleeing.

You have the right to consult an attorney...

- and to remain silent. - Get him!

Gosh.

Did you catch him?

Gosh. You really are a detective now.

Hey. We got him.

Don't stand there. Get him.

Yoon Tae Gu caught Jung Soo Chan.

Nice, Detective Yoon.

She got him.

This punk.

You set an example for your fellow officers...

by promptly arresting a robbery and m*rder suspect...

who was on the run after committing a brutal crime.

Hence, I hereby award...

Inspector Yoon Tae Gu.

[Special Promotion Ceremony]

Yoon Tae Gu!

- Come on. Let's shout together. - Tae Gu, you rock.

- Well done! - Go, Yoon Tae Gu!

Oh, my. You really look like a cop now.

Who knew you'd last this long? I thought you'd quit to get married.

- Come on. - She's so cool.

At this rate, you'll be promoted to commissioner in no time.

- For sure. - Tae Gu can definitely do that.

Could you take a photo of us?

- Sure! - Can we join?

You even got a special promotion thanks to Song Ha Young.

I'm surprised you're holding out so well, Yoon Tae Gu.

Okay, let's try that one more time.

Nice, that looks great. Make a V.

Captain.

- Captain Yoon. - Yes.

Superintendent Baek wants to meet with you.

Superintendent Baek? Why?

I have no idea.

He asked for Chief Kim Bong Sik too,

but I don't know where he is now.

Cheers.

It's nice to have you back.

You're the only one who's happy to see me,

so I'm not sure whether or not I've been doing well so far.

Come on. I really meant it. Must you twist my words like this?

What you need is my intel, not me.

That's what makes you indispensable.

Anyway, pretend not to know me when you see me at HQ.

Goodness. Don't you worry.

Life is full of ironies.

Song Ha Young and even Yoon Tae Gu.

Who knew I'd meet them again here?

Is this fate or something?

Did you meet Inspector Song Ha Young?

Yes, I sure did.

I can't figure out what his team does.

When you stab someone in the back, it all comes back to you...

Darn it. There's one exception.

Who? You?

You little...

Remember? The head prosecutor...

who asked for Yoon Tae Gu back then.

[Head Prosecutor Lee Dong Ju]

Here.

It's classified information, so don't reveal your source.

Investigate it alone, quietly.

This is credible info, right?

Have I ever lied to you?

Go through it. There's solid evidence too.

Why did I miss all this?

Yoon Tae Gu is one of your direct reports, right?

Yes, sir.

- Hello. - Where is Room Ten?

It's this way. You'll find it on your left.

Yoon Tae Gu.

I mean, Detective Yoon.

We're now getting the hang of working together as a team,

and you worked hard on this case,

so I want to buy you a drink.

Hurry up and meet me here, okay?

- I'm telling you. - My goodness.

Oh, there she is. Come on in.

You made it. Take a seat.

Come on. Take a seat.

Come on!

Hey, where are you going?

Are you a bar girl or what?

Goodness, it's such a hot mess.

How dare you disgrace the entire police force?

- Detective Yoon, this is nuts. - How embarrassing.

Remember? The head prosecutor...

who asked for Yoon Tae Gu back then.

I ended up taking bribes...

from a building contractor against my will...

and arrested a fake suspect.

Because of that, I was branded a corrupt cop.

Everything was set up so he'd look like the real culprit.

Anyone would have believed it.

Song Ha Young didn't buy it!

That punk really gets on my nerves.

He has to get in the way of everything I do.

I got demoted because of that jerk.

But you're back now.

Song Ha Young was branded...

a backstabbing troublemaker...

who betrays his superiors.

That's why he's working in that dump of an office now.

That's not enough.

He acts like a gentleman to your face...

but skims the cream off the top behind your back.

Everyone needs to know that.

Bong Sik.

I'll only trust Chief Kim Bong Sik, who's back in Seoul now.

Why would you trust me? Don't trust anyone.

Goodness, you're hurting my feelings here.

You don't even trust me?

You little...

By the way, the Suseong-dong case in Gangnam.

Who is the victim?

Those at Gangnam Police Station are keeping it on the hush-hush.

Hey, today is my first day.

You must've heard something, even just in passing.

Can I please eat first?

Captain Yoon, you're here.

- I heard you asked for me. - What? You came alone?

Is Bong Sik not at his desk?

Detectives must be ready to mobilize at all times.

Today is his first day, and we can't even reach him?

Darn it.

We need you to take on this case.

The victim is Han Seok Hoon,

an economics professor at Hankuk University.

He and his wife were m*rder*d in their home two weeks ago.

[m*rder of Elderly Couple in Suseong-dong]

We need you to investigate it.

This case belongs to Gangnam Police Station.

It does fall under their jurisdiction,

but he's related to someone who is very high up.

I was asked to look into it quietly,

so that's all I know.

But I think they're struggling to find leads.

How do I find a phone number?

I think the reporters already caught a whiff of it.

The higher-ups want us...

to prevent further media coverage and investigate it swiftly.

Everyone at Gangnam Police Station will help you out.

Okay.

- I'll be off, then. - Okay.

There, I found it.

Look at this.

This punk, Kim Bong Sik. He's not picking up.

Is it an important case?

All homicide cases are equally important.

That's true.

Why are we investigating Gangnam Police Station's case?

We should go there to find out more.

- Chief Kim still isn't at his desk? - No.

People really don't change.

[September 29, 2003]

Are we leaving now? Just the two of us?

[Gungok-dong, Jongno]

[September 24, 2003]

No, please...

[Victim Han Seok Hoon, economics professor]

Darn it, this scumbag...

[m*rder of Elderly Couple in Suseong-dong]

The victims of the m*rder of the couple in their 60s in Suseong-dong.

Han Seok Hoon,

a Hankuk University professor, and his wife.

I bet there's something about Professor Han Seok Hoon.

Gosh, seriously.

I told you not to say the victim's name.

Come on. You need to give me something to write about.

Loyalty isn't a one-way street.

They've been preserving the scene for over two weeks now.

There's definitely something.

Will you really not tell me anything?

Over here.

Good day.

I'm Yoon Tae Gu from the Seoul HQ.

- This is... - Nam Il Young, also from HQ.

Yes, they called me. This way, please.

- Okay. - Hey, tidy up here.

[Do Not Enter]

There was cash lying around, but he didn't even touch it.

They think it's an act of resentment masked as a burglary.

It's clean.

It means the victims were overpowered...

without any sort of resistance.

If they had resisted, the blood would have splattered...

to the ceiling because his weapon was swinging around.

You'll see that the victims' bodies are clean...

with no sign of defense when you get to the morgue later.

Gosh, I don't know what this horrifying guy hit them with.

We're trying our best to find out but weren't able to identify it yet.

He came into a rich house like this...

and he didn't touch the cash but only pretended to look for it.

Do you think he had a grudge against them?

We looked into that, but that seems highly unlikely.

Both husband and wife had a great reputation.

Their identities are accompanied by their social position.

So they may have incurred a grudge from someone without knowing.

You're saying it may be the doings of an acquaintance holding a grudge?

Shall we start by investigating around the school?

We already did.

Even if we consider this to be an act of resentment...

his method is too bold and violent.

Overkilling is common amongst m*rder targeting acquaintances.

I doubt that a mentally ill person...

could have casually walked into a house like this.

Could you please give us the list of acquaintances you interviewed?

Yes, I will.

Once you get the list, check to see if there's anyone...

with records of previous convictions and mental illness.

Yes, ma'am.

Why did a detective from Seoul HQ come to a case in Gangnam?

Yes, sir?

Hey! Didn't I tell you to release first and fact check later?

An article has been released...

identifying the Suseong-dong victim as Professor Han Seok Hoon!

What?

You try to be respectful, conscientious, and even loyal.

So when do you plan on trying to get an exclusive?

Who wrote that article?

Who do you think? It's Im Moo Sik, of course.

Gosh, that darn punk!

Let's hurry on over. Gosh!

[Chief Kim Bong Sik, Special Crime Squad]

Thank you, Bong Sik.

Oh, boy.

Kook Young Soo.

[Senior Inspector, Kook Young Soo]

Gosh, so this is it.

[Investigation Record]

Having us waste our time by giving us useless things to do.

The things these higher-ups come up with from their heads...

What about our heads?

I meant it's always such useful things.

What's with this case report? You barely even tried.

Be more descriptive.

[m*rder of Elderly Couple in Suseong-dong]

Did you talk to Captain Yoon?

I'm sure she's doing just fine.

It's best for superiors to just stand back and do nothing.

Are you talking about me?

Gosh, of course not.

Some punk must have leaked the case.

The reporters are already on it.

Those darn reporters. They sure are fast.

Seriously?

They're coming!

Are there still no leads to Professor Han Seok Hoon's case?

It was out of resentment, right?

Come on! Are you done interviewing? Do you have a suspect?

Are you sure it wasn't out of resentment?

Are you certain it was an acquaintance's doing?

Answer us, please!

- Please tell us! - Excuse me!

[Hwang Dae Sun, 2nd Interview Report]

What was the purpose of carving out the flesh...

after the victim's death?

It looks like you'll have homework tonight.

You're still thinking about Hwang Dae Sun, aren't you?

You know me.

Why don't we start our meeting?

Serial murders can be categorized into these three things.

A psychological cooling-off period.

Crime committed against a stranger, for the sole purpose of m*rder.

Murdering 3 or more people, in 3 or more locations.

Out of all the prisoners we've met until now,

Hwang Dae Sun is closest...

to the serial m*rder*r category that we've been researching.

He can be viewed as a serial k*ller since he k*lled three people.

But to be exact, he ended up with three victims...

from two different cases.

He k*lled one out of impulse.

He may have been planning on murdering...

but it was one that derailed from his plans.

I see two were r*ped then m*rder*d and the other was a man.

He had been drinking when committing both cases.

The man was the second victim's boyfriend.

Then the boyfriend was the target of his impulsive crime?

Exactly.

He was m*rder*d...

when he came over to see his girlfriend and witnessed the r*pe.

All three victims were m*rder*d while he was under the influence...

it must have been categorized as an unsystematic crime.

Just because he m*rder*d when under the influence...

doesn't mean that it was an unsystematic crime.

An unsystematic crime...

is when the culprit becomes confused while committing the crime.

In the case of Hwang Dae Sun, we can interpret his acts of...

binding and carving out the skin, as abnormal sexual behaviors.

So it doesn't add up perfectly.

If you look at it according to the FBI's categories of crime...

a systematic type is someone who has problems with their personality.

An unsystematic type...

is categorized as someone delusional or schizophrenic.

With that in mind, Hwang Dae Sun...

isn't someone who has a mental illness...

but a systematic type with a personality disorder.

Gosh, this is really difficult.

In the case of Hwang Dae Sun, he showed systematic behavior...

in how he searched for his victim, planned, and bound them using tools.

I understand when you tell me...

I think the process of reasoning is always very difficult.

All right then.

I think the reason for Hwang Dae Sun's case is...

this one. k*lling more than three.

Okay.

But I think it's more accurate to label it a r*pe and m*rder case...

which has more continuity to it.

Right, since he had a sexual purpose to it.

Right, but there was a bigger chance of him becoming...

a serial k*ller like in our study if he hadn't been caught.

I was shocked when I heard he k*lled animals as a kid.

It's a classic feature that a serial k*ller has.

He didn't have a cooling-off period though.

[A psychological cooling-off period]

The culprit behind the Suseong-dong m*rder case of the old couple...

in their 60s which happened in Gangnam on the 10th...

has yet to be caught.

People are shocked after the victim was identified...

as Hankuk University's Professor Han Seok Hoon.

Not only did Professor Han...

teach economics at the university,

but he also appeared on TV often to give his economical insights.

His bold attitude led to his popularity.

But does there always have to be a psychological cooling-off period?

Serial K*llers feel the highest form of pleasure...

in the pure act of k*lling.

Once that feeling ends,

they look for another victim who will satisfy their need.

To put it simply, a cooling-off period...

is a period where their sense of fulfillment and satisfaction...

from the m*rder continues to last.

Once that psychological satisfaction comes to an end...

they'll move on to the next m*rder.

Then what about Hwang Dae Sun?

In the case of Hwang Dae Sun,

we can't view those periods as a cooling-off period...

since he was under the influence for all the cases.

But the fact that they m*rder again once the cooling-off period ends...

is so horrifying.

Thankfully, in the Republic of Korea,

there still hasn't been a serial m*rder case...

with the purpose of m*rder followed by a cooling-off period.

It's all just speculation.

You wanted to catch guys like this during your ten years, right?

You said you didn't find any injuries on the back...

from either of them, right?

Right, I didn't find any.

It looks clean, don't you think?

Drop me off at the office, please.

You're not going home?

No, I want to organize my thoughts.

You can head home first. Good job today.

No, I want to stop by Gangnam Police Station first.

I heard it's a mess over there right now.

[Scientific Investigations Team]

Which team was Gangnam's Professor Han case handed over to?

Special Crime Squad's Team Two.

Hello? Yes.

[Forensics]

Footprints?

Yes, all right. I'll get back to you.

- It's Jongno Police Station. - Okay.

The Gungok-dong case they sent in last week...

They want us to return the ex-convict's data...

which included his footprints and a few pieces of evidence.

- Shall I bring it over? - Yes.

[Suseong-dong Case Footprints]

- Here you go. - Thanks.

Hold on.

What is it?

Don't these look similar?

I think they do.

You only thought about Hwang Dae Sun for a while.

- Good job. - Thank you.

[Hwang Dae Sun, 2nd Interview Report]

Good job. Let's go now.

You can head home.

I have a bunch of unfinished work because of this report.

My gosh, you're unbelievable.

What's the word for this? Work-a-hill?

- It's "holic." - A workaholic!

I'll get going.

Jung Chu Chu! How about a glass of soju and beer?

Sounds great!

- Hang in there! - All right. Bye.

- Hang in there! - I will.

[Gungok-dong Family m*rder Case, September 24, 2003]

[Unidentified weapon]

Both victims do not have...

any defense marks or signs of resistance.

The culprit beat the victims without giving them a moment...

to protect themselves.

[September 24, 2003, Gungok-dong]

A type of systematic crime committed according to a plan.

The crime is too cruel and daring to conclude...

that it was done by an acquaintance.

[Jinjung-dong, Gangnam]

The culprit did not take any money or valuables.

Who is it?

[Disguised as robbery...]

[Theft, valuables, not taken. Holding a grudge?]

- Who is it? - Is somebody here?

Yes, but I don't hear anything.

It must be a prank.

Goodnight.

That's odd. Okay. Goodnight.

Night.

[Disguised as robbery, presumed as an acquaintance with a grudge]

But is there someone...

who is an ex-convict around Professor Han?

Is this a way of expressing...

the culprit's emotions caused by a grudge they hold?

[Gungok-dong, Jongno]

[Do Not Enter, Under Investigation]

[15 Gungok-dong]

[Song Young Chul, Lee Geum Soon]

[Case Report]

[Seoul Metropolitan Police Agency]

Are you coming to work just now?

Yes.

What happened at the crime scene yesterday?

I thought you weren't interested. Are you actually curious?

I'll tell you once we're inside.

You got a lot bolder, Tae Gu.

You still have that feisty charm.

I do not want your evaluation of my charms.

I hope we can just carry out our duties...

without getting in each other's ways.

You know how important teamwork is...

when it comes to violent crimes.

How can you only do your duty and end it there?

Tae Gu, do you still have a grudge against me?

A grudge?

You're quite delusional.

I do not have any feelings about you.

I'm sorry about that.

But everyone already knows that I'm a big jerk.

Right?

I was also aware of how you were a jerk too.

Isn't that so?

Let's go inside.

I should not stop the ace of the Special Crime Squad.

Shall I, then?

Gosh, heartburn.

You still think you can do this job by keeping loyalty...

even after three years you spent here.

What should I do with you?

You know how strict...

Detective Kang and Park are.

I'm sure Moo Sik...

won't get any information from Gangnam Police Station anymore.

Detective Park isn't the only detective there.

If anyone leaks information to Daehan Daily,

it all turns into Im Moo Sik's article,

while you're sitting around depending on Detective Park.

Moo Sik...

even steals articles from juniors?

Man, talk about lack of conscience.

Yes, conscience.

You'll starve to death after keeping your conscience.

I've been running around a lot trying not to starve to death.

Okay, sure. You work so hard. You're very commendable, aren't you?

My diligent boss is doing a great job at making me sl*ve away.

Forget it.

Go out and find an item that'll become as good a story...

as the one you had stolen.

It wasn't ours anyway. What do you mean it was stolen?

It's Detective Park.

Another case at Gangnam Police Station.

- Again? - Yes.

Hey, Reporter Choi, keep it up. Run!

Forget all about your conscience and loyalty!

Reporter Choi, get us just one good story!

Keep up the good work, then.

Man, I like how big this office is.

Are you satisfied with the result of your first duty on the job?

Captain Kook already did all the work.

If I just sit there taking up someone's spot,

think of how awkward I'd feel.

So what will they do with all that information?

No idea.

He said he'll use it as his pillow or something.

I'm sure Captain Kook will make good use of everything.

Make sure you check and take everything as needed!

- Yes, sir. - Yes, sir.

- In Tak. - Hey, Young Soo.

Is something going on?

Gangnam Station needed backup,

so we're all going to Jinjung-dong.

What about you?

I have to check some footprints.

I see. Keep it up.

- Okay. - Wait.

- To the Behavioral Analysis Team? - I'm fine. Get back to work.

I'll go with you.

Hey, I'm still going strong.

You look busy. Get back to work.

- Hey. - Bye.

- Are you sure? - Yes.

If you get stuck, feel free to bring it to us.

- Bye. - Be careful!

Darn it.

- Over here. - Salute.

Grab everything there.

- Yes, there. - News flash.

Today afternoon in Jinjung-dong, Gangnam-gu,

a woman in her 50s was found dead...

after being struck by a blunt weapon.

The police were dispatched for an investigation...

after a report made by Lee, the maid,

who saw the collapsed victim in her home in Jinjung-dong.

Can you share something with us?

Gangnam Police Station said...

the culprit of today's Jinjung-dong incident...

and the Suseong-dong incident is...

Chief Heo, what on earth is going on?

I told you to investigate this quietly.

Why is the case blowing up?

Captain Yoon and Detective Nam are at the scene right now.

Let's hear from them once they return.

Good grief.

Where's Kim Bong Sik?

No idea. But he'll crawl back...

if he thinks this will affect his performance.

That's his deal.

Look at how big this case has become.

We might end up taking over both of these cases.

Tell me about it.

These reporters already began to say...

that they're related or something.

I have a bad feeling about this. We can't let this happen.

Okay. Who is it?

Excuse me.

Hey.

- Hello. - Hello.

What brings you here?

I found something weird. I wanted your opinion on this.

What is it?

They are both hiking shoes.

- Yes. - What about them?

This one is from Suseong-dong, Gangnam.

And this one is from Gungok-dong, Jongno.

They match, right?

They are from different districts, but it's the same culprit?

[A posh residential house in Gungok-dong]

My mom cooked breakfast for me, and I ate it and went to work.

When I called, she didn't answer.

So I came home and...

Can you think of anyone who held grudges against her?

Or did she have any money problems?

None.

Did she ever sound upset on the phone?

No.

Hey.

["A Woman in Her 50s Found Dead in Jinjung-dong"]

What? There was another case in Jinjung-dong.

- What? - Look at this.

Yes. I'm reading it now.

"A woman in her 50s from a 2-story house in Jinjung-dong..."

"was found dead from blunt force trauma."

[Blunt force trauma in the head]

So was the victim in Gungok-dong.

Right?

I'll check out the crime scene.

I'm going to the Special Crime Squad.

As published in the news article,

this case had many similarities to Professor Han's case.

What? Then it wasn't a revenge k*lling?

We'll have to investigate more, but we don't have any suspects...

for Professor Han's k*ller.

They both died from a blunt force trauma in the head.

And it was staged as a robbery?

Yes.

Gil Pyo. Chief.

Hey, we're busy. Come back later.

- Check this out now. - Come back later.

Just look at this. They are both hiking shoes.

What about them?

In Tak brought them to me.

One of them is from Suseong-dong. The other one is from Gungok-dong.

Suseong-dong is in Gangnam. And Gungok-dong is in Jongno.

- Give me that. - It's the same guy.

I read the reports. It's the same MO.

- Blunt force trauma? - Yes. Exactly.

Suseong-dong and Gungok-dong...

They were both hit in the head.

The victim in Jinjung-dong also died from blunt force trauma.

You knew?

I just got back...

from the crime scene in Jinjung-dong.

Who on earth is this guy?

The MO is the same.

What are you doing here?

Let me in.

You're not an investigator. Why are you here?

I need to see the crime scene.

Leave!

Don't try to steal my case. Get lost!

Please. I must check the crime scene.

Hey. Didn't you hear me? I told you to get lost, you punk!

Darn it.

This is important.

[Scientific Investigations Team]

The victim was hit by a blunt instrument.

[Blunt force trauma in the head]

There are no footsteps in the bedroom.

And the safe wasn't touched either.

[Crime scene stepping plates]

There's no trace of blood splattered on the ceiling.

It means...

the culprit subdued the victim with one blow.

- Yes. - Are you there?

What do we do?

I thought we had ten years.

But it happened sooner than I thought.

Everything fits.

[A psychological cooling-off period]

[Crime committed against a stranger, for the sole purpose of m*rder]

The police admitted that the recent m*rder cases...

in the wealthy neighborhood...

could have been part of a serial m*rder.

The police will consider the three m*rder cases...

in Gangnam and Jongno as serial m*rder cases...

and do their best to find the culprit quickly...

by dispatching more resources in these neighborhoods.

There have been m*rder cases in Suseong-dong...

and Jinjung-dong, Gangnam-gu back to back.

And between these two cases, a similar m*rder case...

took place in Gungok-dong, Jongno-gu.

And the late discovery of the news...

has put the residents in fear.

[Do Not Enter, Under Investigation]

Move back.

The culprit went to different neighborhoods...

and was only after the act of k*lling.

Three murders.

Step back.

What's going on?

[Do Not Enter, Under Investigation]

What happened here?

It's serial m*rder.

[Through the Darkness]

A woman in her 60s was found dead...

in her house in Pyeonghwa-dong. The police are investigating now.

- A blunt force trauma. - The triangle again?

Something is off. I'm sure he saw something unexpected.

Come on, Behavioral Analysis Team. Go back to your office.

Entering the crime scene as you please...

is hindering our investigation.

The answer must be at the crime scene.

What should we do with that?

We can buy time.

I hope you're not buying this nonsense.

The only way to prevent the k*ller from going after another victim...

is this.

[Tomorrow at 10pm]