This film is adapted from the novel of the same name by Agatha Christie. Poirot (David Suchet) solves a complex case for the British military while visiting Istanbul. On his way back to London, he met his old friend Mr. Bouc, a director of the International Bus Company, who booked Poirot a last-minute ticket on the Orient Express. On the train, Poirot met Samuel, a wealthy American businessman. He told Poirot that his life was in danger and was willing to pay him a lot of money to protect himself, but Poirot refused. When he woke up the next morning, Poirot found that the train was trapped in a snowstorm and Samuel had been murdered in the box. With the assistance of Mr. Bouc and Dr. Constantine, an investigation into the murder case was launched. Can he successfully solve this complicated and shocking case?