A scene from Murder on the Orient Express 1974
Countess Andrenyi

As is my custom on night trains, I took trional.

Dr. Constantine

[Poirot makes a noise and looks at the doctor]

Diethylsulphone dimethyl methane. One dilutes the white crystals with water. It is a strong hypnotic.

Countess Andrenyi

Ha, ha! He makes it sound like a poison!

Dr. Constantine

As with most sleeping drugs, if taken in sufficient quantities it IS a poison.

Count Andrenyi

[jumping up]

You are not-!

Hercule Poirot

Ah, you are not accused... you are ex-cused! Thank you both for your help and cooperation.

In this scene

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