Doris Day and Louis Jourdan star in a terrifying thriller of a woman and her murderous husband in Julie. Lyle Benton (Jourdan) becomes so upset when he discovers his wife, airline stewardess Julie (Day), talking with her late husband's cousin, that he tries to kill his wife and himself in a nearly fatal car crash. After the accident, Julie learns that Lyle murdered her first husband. Horrified, she goes to the police, but with no evidence it's her word against his. Julie hides from Lyle, but when she goes back to work, Lyle is one of the passengers on her flight. In a fit of homicidal madness, Lyle murders the pilot, co-pilot and himself ... leaving Julie at the controls and the only one who can save the lives of her passengers.