Original subtitles

(We mix dramatic imagination with scientific knowledge.)

(All people, organizations, places, incidents are fictitious.)

(Staff ensured the animals' safety in the filming of this drama.)

(Episode 11. A Brain on Trial)

Kid. You should come too.

Stop!

Hey!

Darn it.

Kid.

Something similar happened to me.

Is that the police?

(The day before, the day Cho Na Young was found)

There's a fire!

Fire!

Fire!

There's a fire!

- What's going on? - There's a fire!

Fire!

Who...

It is indeed a dead body.

It's a murder case.

(Yi Na's mom)

She's not picking up.

I think she was going home.

I should go.

I'll go back to the station and request a trace.

Okay.

Hey. You.

Myung Se. My heart hurts.

I think it shrivelled up.

- Go to the hospital. - Come with me.

I'll check the scene. Go ahead.

You can take her.

See you later.

(Paramedics)

Hello, guys.

I'm Geum Myung Se from the Neuroscientific Investigation Team.

The team everyone's raving about?

I'm glad you're here.

I have a feeling you might have to take this case.

What?

Hello.

I'm Geum Myung Se from the Neuroscientific Investigation Team.

(I did what my brain told me to.)

(Medical Chart)

I was on my way home.

The roads were deserted.

So I was feeling the fall breeze...

as I walked along.

What?

A shoe?

What?

At first, I thought it was a doll.

But then...

I got a weird feeling, so I took a closer look.

It's a real person?

I was so startled and scared,

I fell to the ground.

You were the first person I called.

Did you see anyone in the street?

No. Well, I don't know.

I was in such shock.

Maybe I don't remember.

Okay. Try to get some rest.

What kind of psycho...

would leave a body in a dumpster?

There are cameras everywhere.

No security cameras?

Or a dashboard camera?

How can you not have a dashcam when you drive such a nice car?

Listen. What I want...

is to see footage from the cameras in the street.

For an open, public space like this,

we need to put in a formal request for cooperation...

due to the Personal Information Protection Act.

We'd have to formally reach out to the local office and so on.

It'll take some time.

Please take care of it as soon as possible.

The case is in our system now,

so please wait.

We'll be in touch.

Talk soon.

I'm exhausted.

- Let me ask you a favour. - My gosh!

Goodness. Don't suddenly creep up on me like that.

Do you have many things to hide? Why do you get startled so easily?

Forget it. You think like a psychopath.

This psychopath has a favour to ask.

No, don't. I won't do it.

A break-in?

But nothing's missing?

You got attacked out of the blue?

It must be someone who holds a grudge against you.

A grudge?

I'm sure you can't think of just one person because there are too many.

You're good at saying the right things in such an annoying way.

You're good at giving compliments in such a scary way.

Stop talking nonsense.

Did you call it in?

Yes.

They said they'd look into it and call me,

but I don't trust them.

So you want us to contact that station and give them a little push?

Okay.

A close friend of mine works there. I'll look into it for you.

Oh, do you want a smart watch just in case?

You know, the one with the button you can press to call the police.

You should wear one at all times.

Goodness. I only suggested it out of concern.

Worry about your poop first,

so you won't have to frantically look for a restroom.

My goodness. You're even worried about my poop now?

Thank you very much.

Hi.

Everyone's here.

Let's start the meeting.

Name, Cho Na Young. Age, 27.

She's a makeup artist.

It is speculated that she was killed in her studio apartment...

where she lived alone and was abandoned on the street.

The cause of death was asphyxia by manual strangulation.

The security footage from the building...

shows how the suspect entered her apartment.

He used a smoke bomb designed for cockroaches.

He made it look like a fire had broken out...

and barged into the apartment when she opened the door.

Then the next day...

The footage shows the suspect carrying Cho Na Young's dead body...

out of the apartment.

One thing to note is that her phone was powered off at the scene,

then disappeared.

The suspect probably took it.

We went through her social media photos...

and found out the make and model of her phone.

Keep an eye on it and see if the phone turns on.

Have you checked her call history?

We've reached out to the service provider.

Anything on the suspect?

We haven't been able to identify the suspect.

It was her day off, so she didn't go out.

She had a boyfriend but didn't see him that day.

Hold on. Something's odd here.

Why did we get a case that has nothing to do with the brain?

A strange handwriting was found at the scene.

- Show him. - Yes, sir.

(I did what my brain told me to.)

Well, you see...

I'm sure they're targeting us.

They're challenging us, the Neuroscientific Investigation Team.

Don't you think so, Dr. Brain?

I do. Yes, you're right. A challenge.

You never let me down, Dr. Brain.

So I strongly insisted that we should work on this case.

That's how we got the case.

I'm getting a bad feeling about this.

We're not thrilled to work on this case either,

but the suspect got caught on the security footage,

and there are witnesses too.

It's only a matter of time before we catch him.

Guys, don't worry.

You didn't see him?

He was standing right there when you ran out of your apartment.

I'm not sure.

I didn't see this man.

I didn't see anyone.

Was it because of all the smoke?

What?

But...

He must've stood out. How did they not see him?

The four neighbours who walked by him all said they didn't see him.

Does it even make sense to you? Are they duping us together?

No, it's possible.

My lab conducted an experiment related to this in the past.

We showed this video to the participants...

and told them to count the number of passes made by those wearing red.

Once they finished watching the video,

we asked them if they saw a person wearing a mask.

More than half of them said they didn't,

even though you can clearly see the horse mask right here.

My gosh. How did they not notice this?

Because of the way the brain works,

we don't recognize even big changes happening...

right before our eyes when we're preoccupied with something.

It's called "change blindness."

It's the secret behind many magic tricks.

I see. When they saw all the smoke,

that was all they could think about.

So they didn't even notice the helmet guy.

Yes, it's possible.

Darn it. I thought we'd be able to catch this guy soon.

Goodness. This will be a headache.

My eyes will be exhausted again.

(Seobu Police Station)

Oh.

You should take a break.

No, we need to catch this punk as soon as possible.

We'll catch him in no time if we can just track him down.

Gosh, I'm all tense.

Let me give you a shoulder massage.

Oh, no. It's okay.

I have a sports massage license.

Stay still.

- Here. - Goodness.

Gosh, be gentle.

- There. The other way. - Captain Seul, please be gentle.

My goodness.

Oh.

What's going on, you two?

You've gotten this close?

No, this was...

That's right.

Is there a problem?

No, not at all. There are no problems.

Keep doing what you were doing.

Well, I should get back to this.

I'll help you.

Captain Seul, it's getting really late. You should go home.

Staying late paid off.

I got him. He stopped by a convenience store.

What?

Yes, it's him.

Where is this?

Oh! Yes.

He was here.

I got nervous when he walked in wearing the helmet.

What did he buy?

Packing tape.

How did he pay for it?

With cash.

Did you notice anything else? Is there anything you remember?

Yes, there is.

(Packing Tape, Regular)

It's a dollar.

He looked suspicious, so I took a closer look.

He was wearing some kind of uniform inside his jacket.

He looked like a cop.

A cop?

The part-timer said she saw some kind of badge on his chest.

It's very likely that he is a cop.

The pants look like a part of the uniform too.

Did the victim personally know a cop?

Yes, she did. Her boyfriend.

Im Young Hoon. Age, 29.

He's in Mobile Force Two at the Seoul Metropolitan Police Agency.

(Im Young Hoon, Age 29)

It was my day off, so I stayed home.

It was Na Young's day off too.

You'd been seeing each other for a month...

but didn't meet on your day off? That's odd.

She said she was tired.

We talked on the phone.

Check my phone records. You'll see I was home all day.

Are you sure you two didn't fight?

You were indicted.

(Gangsu Police Station, Im Young Hoon)

For hitting your ex-girlfriend.

I sued her too, for making a false accusation.

The case is on trial now.

Did Na Young know about it?

No.

Perhaps she found out that day?

No.

Cho Na Young found out that your ex-girlfriend had sued you...

and wanted to break up.

Maybe you went after her out of rage.

I didn't.

Are you interested in the brain?

Sorry? What do you mean by that?

The brain. This right here.

No.

Why do you ask?

Dr. Brain, what's your take on this guy?

The fact that he didn't register the word "brain" quickly...

tells me he isn't interested in it.

"I did what my brain told me to."

I don't see him as someone who'd write that.

But he keeps insisting that...

we check cell towers for his alibi, which seems fishy.

What about her cell phone log?

It matches his statement.

Her last call was with Im Young Hoon,

and cell towers put him in his neighbourhood.

He seemed too collected for someone who lost a girlfriend.

And don't get me started on his previous assault charge.

Nothing went missing, so we can rule out a robbery.

She wasn't sexually assaulted either.

Murder following a bad breakup seems most likely.

I agree with all of you.

(Detective Kang)

Hey, Detective Kang.

Right.

Did you find out who broke into Dr. Shin's house?

Okay, got it. Send it to me. Thanks.

What?

Hold on a second.

What the...

What on earth is going on?

The same person?

The person who broke into my house...

is also the murder suspect?

I got an odd feeling from his stance.

Gangnam Police Station...

found your intruder on another CCTV footage.

Just like you said,

he took off on a motorcycle from the park.

The helmet he wore is the same one that our helmet guy had.

Did he change his clothes, then?

That jacket he's wearing.

That particular design was released last year,

and it's reversible.

To sum it up,

the helmet guy who disposed of Ms. Cho's body...

turned his jacket inside out, got on a motorcycle,

came to the park in my neighbourhood, took his helmet off,

and broke into my house?

That's it.

Could it be the boyfriend Im Young Hoon?

They seem to have similar figures, but I can't be sure.

Have you met Im Young Hoon before?

Not that I remember.

Anyway, this person is challenging...

the Neuroscientific Investigation Team.

He broke into your house...

and left a message stating that his brain told him to kill.

I think this person is challenging Dr. Shin.

I don't know who he's challenging,

but something unusual is going on for sure.

Fifty-one, fifty-two,

fifty-three,

fifty...

Doctor, you have a visitor.

Right.

Doctor.

This is a surprise.

I doubt you came because you missed me.

I had something to ask.

Did you meet Ha Ru?

I wonder what made you think that.

Please answer my question.

No, I haven't met him.

Is that the truth?

Whether you believe it or not...

is your choice.

Guard.

Has Dr. Shin Ha Ru...

Oh, right. The brain scientist.

- You know him. - Of course.

He was here.

Who was he here to meet?

He has been visiting Dr. Hwang regularly.

Darn it.

The man who broke into Dr. Brain's house...

killed Cho Na Young.

This is giving me a headache.

What could this be all about?

Dr. Brain, a penny for your thoughts.

I'm thinking of a way...

to get the culprit to turn Cho Na Young's phone on.

Nice.

What is it? Do you already have a solution?

I don't.

You got my hopes up.

Darn it.

Cho Na Young's phone was just turned on.

(Jangwon Penitentiary)

There's the cell tower that pinged Cho Na Young's phone.

GPS analysis puts her phone at...

Jangwon Penitentiary.

Jangwon Penitentiary?

I'm associated with an inmate there.

I should check if it's him.

- Go arrest the guy. - Right.

They must be flustered by now.

I'm sure they're curious as to why the phone was turned on.

How does it feel...

to mess with their heads?

Goodness.

You don't seem to be in a good mood.

Well,

to think that I'll soon be arrested...

What's wrong? Does it scare you?

No.

It's just that I'll miss this.

I felt a thrill for the first time in my life.

It's too bad I won't get to feel it again.

Don't be too concerned.

It's your first offence, and you're sick.

You won't be in for too long.

Are you sure?

One by one,

just do as I say.

Okay.

What's happening?

What is it?

The punk's on the run.

(Jangwon Penitentiary)

(A beautiful view and friendly people)

Oh, this feels good.

Is the skin on my back too thin?

Why is it so itchy?

Yes?

Can I help you?

I'd like to meet Dr. Shin Ha Ru.

Oh, are you...

a fan of his?

They visit sometimes.

Yes. I'm a fan.

Oh, I see.

Too bad, then. He's not in.

Oh, excuse me.

It's the guy he's with.

Hey. Are you at the penitentiary?

The punk left the penitentiary.

We traced him again, and he's nearby.

At our police station.

Our police station? What are you on about?

Anyway, it looks like he's there, so keep your eyes peeled.

Oh, and the uniform the convenience store clerk said...

the guy was wearing.

It's not a police uniform.

I think it's a prison guard uniform.

A prison guard?

Oh, that's possible.

Civilians can't tell a cop's uniform from a prison guard's.

(Kang In Ho)

Okay.

Yes.

I see.

Got it.

Get back soon.

I love you.

(Subsection Chief Kim)

What?

What? Why does he love me?

He said he loved me.

If people act out of character...

- they die. - They die.

Oh, dear. I suddenly miss...

my babies so much.

Why am I tearing up?

It's because you're scared.

I heard it all.

You know I'm the killer.

Freeze.

Move and I'll smack you.

Are you and Dr. Shin close?

Yes. We're very close.

We're tight.

You need to die, then.

What?

I want to cause Dr. Shin some pain...

then go to prison.

No way, then! We're not at all close.

We haven't even eaten together.

Even if I were to die, he wouldn't bat an eyelid.

Let's see if he does or not.

Come at me!

Come on!

Hit me!

How dare you attack my subsection chief?

Darn you.

- Here! - Shoot.

You're under arrest for Cho Na Young's murder.

You can keep your mouth shut,

and what you say can be used against you in court.

Okay?

Darn you!

Captain Seul.

Thank you.

You saved my life.

If you know that,

be nicer to me.

Yes. You bet I will.

I'm so touched.

"My subsection chief?"

Mr. Kim!

Darn it.

(Interrogation Room 1)

He played me completely.

We went all the way there for nothing.

I'm positive. He's challenging Dr. Brain.

He said he wanted to cause you pain before going to prison.

Do you know him?

I think we met when I visited,

but I don't remember him.

Why would he do this to someone he barely knows?

He could be controlled by someone who does know me.

We checked Cho Na Young's messages.

You and her...

split up a year ago.

We hadn't split up.

We'd agreed to take a break.

That's why I kept my ring on.

I didn't call her even though I'd wanted to.

She betrayed me and met some other guy.

That's not called betrayal.

That's called a break-up.

You said you wanted to teach me pain.

Why?

Because you seem like a smart guy...

who has everything.

You're weird and crooked.

Why did you break into my place?

I just wanted to look around.

Oh, yes,

because I'm a fan.

You said...

"Kid. You should come too..."

to me.

What did you mean?

I meant you should rejoin your parents.

Why did you call me "kid?"

To me, you look like a kid.

Did Dr. Hwang Dong Woo send you?

No.

I did what my brain said.

What is...

your brain like?

You'll find out soon enough.

Do you think Hwang Dong Woo made him do it?

It's very likely.

We recently discussed my parents' car accident.

What's weird is...

how he knew about the kid part of my memory.

It's either a coincidence...

or he's the culprit.

Didn't you say it was a car accident?

Can I look into the case files?

When did it happen?

About 28 years ago.

The files are gone, then.

We destroy even big case files after ten years.

Car accident files are never kept.

The killer is a prison guard,

and he worked in the wing where the worst criminals are.

The public is concerned...

for the guards' welfare and psychological health.

The penitentiary...

has not released an official statement yet.

It's been confirmed that the killer and the victim dated in the past.

He has been meeting with Dr. Hwang Dong Woo on a regular basis.

It is Dr. Shin Ha Ru.

(Korea National University Hospital)

They met?

The correctional officer confirmed it.

I should've looked into it sooner.

It's my own fault for believing Professor Hwang, that evil man.

Why did he lie?

Because he thought I wouldn't let him see Ha Ru.

Why was he so determined to meet Ha Ru?

I told you that he was a destructive person.

Right. But why is he targeting Ha Ru?

He does these things for no reason!

That correctional officer too. He got played by that scumbag...

and ruined his own life.

What is Ha Ru up to these days?

All I did was tell him...

to prove his love.

Then he went there and got himself into such trouble.

Why did you send him to my place?

Did he say I sent him?

I did not.

I guess he's a fan of yours.

A fan would never barge in with a knife in his hand.

My parents' accident.

Is there anything you know about it?

Tell me.

You said it was something you didn't want to remember.

Forget it.

I don't want to fatigue my brain.

If you want to know, just tell me anytime.

Algernon.

My parents' accident...

Is there something I don't know?

Are you asleep?

I have so much on my mind now. How could you sleep?

Gosh, you little brat. You aren't even interested.

I should just ask. About that day.

I'll ask the person who knows the most.

I said I'd visit you.

Don't worry about it. I haven't visited you in a long time...

and wanted to talk to you about something.

I heard you met Professor Hwang Dong Woo.

How did you know?

I know him. I heard he met you.

I hear he makes you visit him, using the brain donation as an excuse.

Yes.

Well, visiting him is fine.

But he kept insinuating that he knew something I didn't remember...

about my parents' accident.

My parents.

Was it not a normal accident?

Ha Ru.

That man... He's pure evil.

If you spend too much time with him,

you'll either become a murderer or take your own life.

Look at the correctional officer who killed his girlfriend.

I heard he was in charge of Professor Hwang.

I also think that he was controlling that guy.

You think? It is the truth. I'm sure of it!

Do not let him get to you.

I'm not such an easy target.

You're already letting it happen. You are curious about him.

It was just...

It was a normal car accident.

That man is using your flawed memory...

to cook up a ruse to shake you to your core.

But why do such a thing?

He taught me...

and your father as our professor.

He was the Professor of Neurosurgery...

at Korea National University Hospital,

so I thought that must've been the case.

He and your father didn't get along.

He knows you're his son. That's why he's doing all this.

Just because...

of my father?

He does these things for no reason.

He just loves destruction.

So do not fall for his tricks. Do you understand?

Yes.

Let me ask you one thing.

Is there anything you're hiding from me?

No.

You already know everything.

He's lying.

- Go back inside. - Okay.

He's clearly lying.

But why is he lying?

Dr. Shin Ha Ru.

Prosecutor Han Yeon Hee. What brings you here?

I'm here to see you, officially.

Also, he tried to kill me.

Please make sure you get him locked up for decades.

He broke into my home. That will be added to his charges, right?

Yes. Murder, attempted murder, and breaking and entering.

We want to request the death penalty,

but the defence attorney is making an absurd claim.

So I'm here for your advice.

They submitted Kang In Ho's brain MRI scan as evidence.

They're saying his brain exhibits psychopathic tendencies.

They said such tendencies should be considered an illness...

and a mitigating factor.

Psychopathic tendencies should be considered an illness?

Many medical and scientific experts do believe...

that it is caused by biological factors.

Although there are still heated controversies surrounding it.

They're going to insist that it's an illness...

so that they can get his sentence reduced.

I bet this was the plan from the get-go.

"I did what my brain told me to."

That's why he wrote that at the scene.

Who's the attorney that's making such an absurd claim?

Cha and Jung Law is representing him.

What? That law firm is very expensive.

Is Kang In Ho's family well off?

In his statement, he said he struggled with poverty as a child.

That's strange. How did he hire such an expensive law firm?

Psychopathy is usually considered an aggravating factor.

Why is that high-profile law firm making such an absurd claim?

But there's a neuroscientist who supports this claim.

Who?

The defence counsel is bringing him in as a witness.

His name is Hwang Dong Woo.

Have you heard of him?

A neurosurgeon who murdered his own patient years ago.

Yes, I know him very well.

When is the trial?

(Court)

Of course.

The air at the penitentiary doesn't even come close.

Let us go.

(Court)

This image of Kang In Ho's brain shows...

that his ventromedial prefrontal cortex...

and the Gray matter at the front of his head...

are only 15 percent of the size of the average person.

His amygdala is also reduced in size.

His prefrontal cortex, amygdala,

and hippocampus lack connectivity.

It is the brain of a typical psychopath.

This biological finding proves that Kang In Ho...

has an impaired brain.

Anyone can say that he suffers from an illness.

But unlike other illnesses,

having the brain of a psychopath...

isn't grounds for a reduced sentence,

which I find to be unfair.

Even domestic experts agree that psychopaths...

are those suffering from an impaired brain...

with issues to the frontal cortex.

Your Honour,

the defence is misleading the truth...

by claiming that these facts...

are backed by ambiguous figures.

Right. It is why...

I brought an expert witness to answer medical questions.

I call to the stand Hwang Dong Woo,

a former scientist...

at the Korea National University Hospital.

He doesn't seem well.

It's all a show.

I bet that he's even healthier than you are.

The witness will take the oath.

I swear...

by my conscience...

that I shall give the truth, the whole truth,

and nothing but the truth.

Should there be any falsehood,

I will accept the charges of perjury.

Witness,

Hwang Dong Woo.

The defence may ask his questions.

Thank you.

Doctor, please state your current status.

(Witness)

After being arrested for seven counts of murder,

I have been incarcerated...

in Jangwon Penitentiary on death row.

- What? - On death row?

- Seriously? - How can he be an expert witness?

Prison?

No way.

The expert witness...

was once a renowned neurosurgeon...

in this country.

You were a respected doctor,

and rumour has it that you were also wealthy.

Why did someone like you, who had fame and fortune,

suddenly commit those murders?

Because...

I am a patient...

with a psychopathic brain.

- What? - A psychopathic brain?

- Unbelievable. - So he's a psychopath?

- Darn. - I can't believe it.

How can he be an expert witness, then?

Do you agree...

that a psychopath suffers from a disorder to the frontal cortex?

In other words, do you agree...

that psychopaths are those with a mental illness?

I do.

And I...

am proof of it.

Then,

since Kang In Ho suffers from the same disorder as you,

do you believe that he has the free will...

not to commit murder when facing a stressful situation?

We are sick patients.

We don't have the free will...

to stop ourselves from committing murders.

Did you hear that?

I can't believe it.

So they can't help it?

What the...

That's absurd.

That is all.

They're psychopaths.

Unbelievable.

I can't believe he just said that.

Order.

Prosecution, you may question the witness.

Right.

Dr. Hwang.

You are claiming that psychopathy is a mental illness.

Those with mental illnesses have no control over their actions.

In a nutshell, their judgement is impaired.

That's right.

But psychopaths...

are well aware of their actions.

They commit crimes...

knowing what will happen.

That...

is the difference between psychopathy and mental illness.

You're wrong.

Knowing what will happen?

Look at how I've been caught...

and see how it's ruined my life.

Not being able to foresee that...

is the same as having impaired judgement.

I guess.

He's not wrong.

Right?

I guess he has a point.

If you think about it, it makes sense.

- I agree. - He has a point.

Let's say that you're right...

and call psychopathy a mental illness.

Can you tell me...

if there's a way to cure psychopathy?

There is no medical treatment...

that will fundamentally cure an adult's psychopathic brain.

Yes, my point exactly.

Curing psychopaths is considered a conundrum.

Since they can't be cured or reformed,

for the safety of our society,

psychopaths should be removed from the streets...

for as long as possible.

Psychopathy isn't grounds for a reduced sentence.

It is the reason for an aggravated one.

- She's right. - She has a point.

Your Honour,

may I finish my argument?

Go ahead.

Thank you.

There is no way...

to cure the adult brain of a psychopath.

However, many attempts are still being made.

One of them...

is...

the Psychopathic Brain Rebuilding Project...

spearheaded...

by Dr. Shin Ha Ru who is in the audience.

Whether it is possible or not to cure a psychopathic brain...

should be a question for Dr. Shin.

Your Honour,

I call Dr. Shin Ha Ru to the stand.

(Prosecution)

(Judges)

I'll allow it.

We'll take a short recess.

(Courtroom 416)

I'm getting a bad feeling about this.

Dr. Brain, what if you didn't take the stand?

Detective Geum's right.

By the looks of it,

he's trying to provoke you.

Let him.

Okay, found it.

I know how I can...

discredit his claims.

Dr. Shin, please take the stand.

(Witness)

Dr. Shin,

briefly inform us...

on your Psychopathic Brain Rebuilding Project.

Externally and internally,

I am looking for a way to cure a psychopathic brain.

Is the research applicable?

No, it's still in the research stage.

I see.

You have received...

a lot of government funding for this project.

Isn't it because there's a chance...

that psychopathy is curable?

That's right.

Do you believe that psychopathy...

is an illness of some sort?

Yes. I think it's a disease.

(Prosecution)

In that case, do you agree that Kang In Ho...

who has the brain...

of a psychopath is ill and therefore...

should be given a shorter sentence?

(Counsel)

No.

Witness.

You just said you believed psychopathy was a disease.

Yes.

But not all who are afflicted...

become murderers.

Many people with a psychopathic brain...

manage to live ordinary lives,

and some even enjoy success and high social status.

Of course, I have heard the talk that...

many CEOs are psychopaths.

There was even a rumour...

that Steve Jobs was a psychopath.

But have you seen any of their brain scans?

No.

Doesn't that make it an assumption made by the public?

No. I have proof.

- What? Proof? - He has something?

- What does he have? - I don't know.

You have proof?

Can we see it now?

Yes.

Please pull up the functional MRI I have of a psychopath's brain.

What you see on the monitor...

is a brain scan...

taken when the person was shown a photo...

of a gruesome crime scene.

You can see the two brains showed a different response.

The amygdala of one shows almost no reaction,

and there's very little connection between it and the prefrontal lobe.

The amygdala itself is smaller too.

Even more so than the defendant Kang In Ho's.

Based on these photos alone,

this person is an even worse psychopath.

But the owner of the brain in this photo...

is someone you know well.

Do you want to know whose brain this is?

- Yes. - Yes.

What's he up to now?

Is this an award ceremony or what?

Why's he upping the ante?

The owner of this brain,

the person with the psychopathic brain is...

It is...

It is...

It's me.

(Witness)

(Brain Works)

Are you asking the probability that I'll commit murder?

He's not the murderous psychopath you're thinking of.

I'm confident.

Confident that I can control my brain.

I wonder if you really are.

There's only one thing I want.

To not break up.

I beg of you.

Please let me keep my husband.

You must really want to see me.

That is just too rude.

You.

What have you done?