While traveling from Istanbul to London on the legendary Orient Express, a wealthy American businessman is found murdered in his compartment—stabbed twelve times behind a locked door.

​When a snowdrift halts the train in the middle of the Yugoslavian mountains, the world-renowned detective Hercule Poirot must step in. He quickly realizes that the victim had a dark past, and among the twelve diverse passengers in the coach, everyone has an alibi—but everyone is also hiding a secret.