Laplace's Witch (ラプラスの魔女)

Madoka.

Hold mom tight.

Get in there.

Hurry up. -You, Mom?

I'll be fine.

Mom.

Professor, how is it?

My legs are sore.

Yes but, my question...

Are we safe with that level?

We are.

A man named Mizuki Yoshiro.

67 years old.

The fire department has detected lethal gaz...

trace of hydrogen sulfide.

Where the man was found...

hydrogen sulfide was detected.

I repeat.

The man is named Mizuki Yoshiro.

The area is sealed but we should be OK.

Right , professor?

If it drags any longer...

this spa resort is over.

Professor, you need to declare the area safe.

Don't pressure me like that.

the body was found there?

You can't be here.

The area is sealed.

For this particular scene...

it is quite sheltered from the wind.

Hydrogen sulfide gas could accumulate.

However, a lethal concentration of gaz...

is close to impossible.

That mean...

there's no problem for the hot springs.

In that case...

did that man commit suicide?

No...

Hydrogen sulfide can be used for that purpose...

but always in cars or houses.

They're always closed places.

In outdoors conditions...

there is no way to maintain a lethal level of gas.

So that's it.

If there's no problem we're going to reopen.

Is it possible that someone else...

made him inhale the hydrogen sulfide?

Do you mean...

it would be a murder?

Right.

And, who are you?

Sorry.

I'm Nakaoka with Azabu Police Department.

Aza-bu?

What do you think, Professor?

The probability of a murder?

It's impossible.

For anyone...

it's impossible to maintain high levels of hydrogen sulfide long enough.

It's not an accident, a suicide or a murder.

So how did he die?

We don't know yet.

See you.

Professor.

Let me ask you a few questions.

Professor.

Something was required to produce the gas?

Nothing was not found at the scene.

Probably the murderer took it with him.

Professor.

Are you listening?

Excuse me.

As I said...

the levels of gas on the scene are too low.

It can't be a murder.

Professor, tea is ready.

Thank you.

There was no wind.

There's always some, even if you don't feel it.

Such concurring factors...

only a sorcerer or a spirit could do it.

Thank you.

How about a devil?

For example, someone killing her husband for money.

With a handsome life insurance.

A wife, 30 years younger than her husband.

Excuse me.

When the carbon dioxide concentration is less than 500ppm...

the ice cap starts to extend...

ice spreads again on the continents...

with the impact of...

massive climate changes.

Although this thesis encompasses the Phanerozoic Eon...

the research on more major climate changes...

focuses on two hypothesis.

First, the phenomenon I mentioned before...

called the 'snowball hypothesis'...

in Japanese, referred to as "global freezing"...

700 million years ago.

The second is the Remer hypothesis...

Professor. -Yes

it's time.

Too bad.

The best part was coming.

Next time we'll see the snowball and Remer hypothesis in detail.

I hope everyone is interested.

The gas produced by a volcano could be carried by a breeze...

and spread in lower places...

where a lethal concentration could build up.

How could someone produce hydrogen sulfide and use it?

The highest possible level would be only 0.001%...

a random accident is impossible.

I can't figure this out.

Are you still engrossed with that investigation?

The hot spring spot itself is safe, right?

You should be satisfied with that.

Sure, but...

now you put that in a drawer and move on.

You haven't read your students essays, right?

I'm sorry.

And so, you'll let them all pass again.

You're so lenient.

You're obsessed with that investigation.

Mrs. Okunishi.

I have to object on two points.

Firstly, I am not lenient with my students.

So many young people interested in the field of geochemistry...

isn't that wonderful?

I don't want to be harsh on them...

and discourage their future.

Did I say something strange?

No

your students aren't interested in your field but in their own...

Never mind.

Secondly, about that investigation...

it is not an obsession...

your assessment is inaccurate.

Talking about the devil, look.

I heard about that waterfall...

we walked by with my husband.

But on the way there...

I realized I had forgotten the battery of the camera...

so your husband had this accident when you went back to the hotel?

I shouldn't have worried about the camera.

It's all my fault

it was a mistake.

I'm sorry.

Mrs. Mizuki, please...

That man was a famous filmmaker.

They say she will inherit a fortune.

Hello, this is the Aoe Research Lab.

What?

Alright.

Alright.

Professor, what did you do?

What?

Inspector Nakaoka from the Azabu Police Department.

Be careful. -Alright.

The name of the deceased is Nasuno Goro, 39...

living in Saitama.

Someone discovered him on this bench...

slouching as if he'd fallen asleep.

He died of hydrogen sulfide poisoning.

Tell us, Professor?

A month ago...

far from here in that hot spring...

exactly the same type of hydrogen sulfide poisoning.

Would you say this is random?

How is that possible?

It is a recessed terrain...

if this was the victim...

the hydrogen sulfide pouring...

this can certainly not reach a lethal level.

Soba noodle soup with no onions.

Nasuno was not alone.

He was seen at the hot spring with a young lady driving a car.

Some residents saw them.

She was hiding behind a hat and sunglasses.

I suspect she is Mizuki's wife, Chisato

what we know about Nasuno...

he's a second rate actor.

An actor?

Mizuki was a filmmaker.

I wouldn't be surprised if the two were connected.

As it is...

I would bet that...

this victim and Mizuki’s wife are connected.

That would mean...

Chisato Mizuki is a serial killer.

She had an affair with Nasuno...

He helped her kill her husband, then she got rid if him.

Why are you so focused on her?

Investigator's intuition.

Here you are.

Thank you

there.

What is that?

Good appetite.

Good appetite.

Yes.