Evil Under the Sun (1982 film)

Evil Under the Sun is a 1982 British mystery film based on the 1941 novel of the same name by Agatha Christie. It was directed by Guy Hamilton, and stars Peter Ustinov in his second theatrical appearance as Belgian detective Hercule Poirot.

Sir Horaces former mistress is actress Arlena Stuart Marshall Diana Rigg, who is on holiday with her husband Kenneth Denis Quilley. Arlena is emotionally abusive to her stepdaughter, Linda Emily Hone, and flirts with handsome young Patrick Redfern Nicholas Clay, who is himself married to the meek Christine Jane Birkin. Patrick is on the island only because Arlena arranged it. Kenneth turns to his old friend, Daphne, who reviles the way that Arlena treats both him and Linda. Arlena has also caused financial problems for Odell and Myra Gardener James Mason and Sylvia Miles by walking out of a major play, and refusing another. Writer Rex Brewster Roddy McDowall has already spent the royalties advanced to him for a tellall biography of Arlena. Early one morning, Arlena takes a paddleboat to Ladder Bay. Patrick and Myra go for a boat trip around the island and see a body lying motionless on the beach. Patrick approaches the body and recognizes Arlena, announcing that she has been strangled. Poirot must determine which of his eight fellow guestsor Daphneis the murderer.Daphne had heard Kenneth in his room typing at the time of the murder, and Christine was with Linda at Gull Cove and did not leave until 1155 for a 1230 tennis match. Sir Horace argued with Arlena about the diamond at Ladder Bay at 1130, which is confirmed by his yacht crew and by Daphne. Arlena kept the diamond, promising an explanation that evening, and Poirot finds the jewel nearby in a grotto. Patrick left at 1130 with Myra, seeing Sir Horaces yacht coming, and hearing the noon cannon. Rex met Linda entering Gull Cove at 1200, and reports that a bottle flung from the top of a cliff nearly hit him. Odell was seen reading by Daphne and her staff. He claims low water pressure hindered his 1215 wash before tennis, but nobody admits to bathing at that time. ........

Source: Wikipedia