Peter Ustinov stars as detective Hercule Poirot in this classic British thriller adapted from the novel by Agatha Christie. Set in the 1930s, the film follows Poirot as he hunts a killer responsible for the murder of a rich heiress aboard a steamship travelling down the Nile. After discovering that a number of the passengers had a reason to kill her, Poirot faces a race against time to solve the case before the ship reaches port. The cast also includes Jane Birkin, Bette Davis and Mia Farrow.