It was supposed to be the perfect crime. But an avalanche stops the Orient Express in its tracks just before a passenger is found murdered in his berth, foiling the perpetrator's getaway, and trapping 13 potential suspects—each with an airtight alibi—in the train car with Inspector Hercule Poirot. If you've seen the movie, take note: Branagh changes Christie's ending. Hot tip: Dan Stevens's audio narration is fantastic.