'The Murderer is with us - on the train now...' It's just after midnight, and the famous Orient Express is stopped in its tracks by a snowdrift, isolated by the storm. A passenger lies dead, stabbed a dozen times, his door locked from the inside. The world's greatest detective, Hercule Poirot, must identify the prime suspects from among the small but disparate group of remaining passengers- before the murderer decides to strike again.