Detective Hercule Poirot is aboard the Orient Express when an unlikeable wealthy American is murdered. As the debonair detective investigates, he encounters a cast of intriguing passengers, including the glamorous Mrs. Hubbard and the enigmatic Princess Dragomiroff. With his unparalleled eye for detail and keen instincts, Poirot uncovers secrets and motives as he seeks the truth behind the murder in this suspenseful tale of deception, revenge and justice.