Poirot vs. the Passengers' Lies
Murder on the Orient ExpressHercule Poirot systematically dismantles the web of lies constructed by the passengers, exposing their hidden connections to the Armstrong case.
increasing
Bearing strength in each event
decreasing
Initial Deceptions

Initial Deceptions
The First Lies
All passengers deny any connection to the Armstrong family. Hector MacQueen claims ignorance of Ratchett's true identity. The valet, Masterman, says he never heard of the case. The Swedish lady, Greta Ohlsson, pretends not to know about the kidnapping. Mary Debenham and Colonel Arbuthnot act as if they are strangers.
Poirot's Suspicion
Poirot is immediately suspicious of the universal denial. He notices small inconsistencies: the overheard conversation, the pipe-cleaner, and the handkerchief. He decides to test each passenger's story.
The Strategy
Poirot resolves to confront each passenger individually with the truth, using the method of guessing. He believes that if he can make one person admit their connection, the whole conspiracy will unravel.
Breaking the Alibis

Breaking the Alibis
The Countess's Confession
Poirot confronts Countess Andrenyi about the altered passport and the handkerchief. She admits she is Helena Goldenberg, sister of Mrs. Armstrong. Her husband tries to protect her, but she confesses. This is the first crack in the wall of lies.
The Italian and the Valet
Poirot then accuses Antonio Foscarelli of being the Armstrong chauffeur. The Italian breaks down and admits his past. Masterman also confesses to being Colonel Armstrong's batman. Each confession weakens the interdependence of the alibis.
The Swedish Nurse
Greta Ohlsson, when confronted, weeps and admits she was Daisy's nurse. She is overwhelmed with guilt and relief. Poirot now has a clear picture of the conspiracy.
The Final Confrontation

The Final Confrontation
The Remaining Passengers
Poirot confronts Princess Dragomiroff, who admits she lied to protect Helena. He then turns to Mrs. Hubbard, who is actually Linda Arden. She reveals herself as the mastermind and tells the full story of the conspiracy.
The Resolution
Poirot presents the two solutions to the assembled passengers. The conspirators are shocked but relieved when he offers them a way out. They accept his first solution, allowing them to avoid prosecution.
The Aftermath of the Lies
The entire investigation has been a battle of wits between Poirot and the passengers. In the end, Poirot's ability to see through their lies leads to the truth, but he chooses to uphold a higher justice by letting them go.
First round of interviews, morning after murder
Second round of interviews, afternoon
Late afternoon, after the baggage search