Murder on the Orient Express

Hercule Poirot, private detective and retired Belgian police officer, boards the Taurus Express train to Stamboul (Istanbul). On the train there are two other passengers, Mary Debenham and Colonel Arbuthnot. The two act as if they are strangers, but Poirot observes behavior that suggests that they are not. Poirot is suspicious of the couple. The train arrives in Stamboul and Poirot checks in at the Tokatlian Hotel. As soon as Poirot arrives he receives a telegram summoning him back to London. While waiting at the hotel for the next train, Poirot bumps into an old friend, M. Bouc, head of the Wagon Lit. M. Bouc arranges a space for Poirot on the Orient Express. In the dining room of the Tokatlian Hotel, Poirot first spots Ratchett and Hector McQueen eating dinner. Poirot know that Ratchett is an evil man and he describes him to M. Bouc as an animal.
Poirot board the Orient Express. He is forced to ride in a second-class cabin because the train is unusually full. Ratchett and Hector McQueen are also aboard the train. Ratchett approaches Poirot and asks if he will work for him, Ratchett tells Poirot he has been receiving threatening letters and that someone is trying to kill him. Poirot refuses the case. M. Bouc has taken the last first class cabin, but arranges to be moved to a separate coach and gives Poirot his space in first class. The first night Poirot sleeps in first class, he observes some strange occurrences. Early in the morning, Poirot is wakened by a cry from Ratchett's compartment next to him. The wagon lit conductor responds knocks on Ratchett's door and a voice from inside responds, "Ce n'est rien. Je me suis trompe" (It is nothing. I am mistaken). Poirot has difficulty sleeping because there is a peculiar silence on the train. Mrs. Hubbard rings her bell and tells the conductor a man is in her room. Poirot rings his bell for water and is informed by the conductor that the train is stuck in a snow bank. Poirot hears a loud thump next door.
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