Orient Express

There is a murderer on this train ... or maybe even several! Since yesterday, two passengers have been missing, and last night the body of one of them was found. Hercule Poirot advised the responsible conductor as well as the police officer to gather all passengers, including himself, in the main restaurant of the train. But just before the door was locked, you received a message from Mr. Poirot: "Do not enter the restaurant! If I am not mistaken, the murderer is among us, but the decisive evidence will not be in his guilt. I have left you a letter that contains all the information I have collected so far. While I hold everyone up for an hour under the pretext of questioning, it's up to you to expose the murderer!"