Based on the facts of the Billy Cook killing spree of the early '50s, this riveting film noir classic follows two family men on a fishing trip as they make the deadly mistake of picking up a psychotic thumb-tripper. Taking control inside the car, the deranged hitchhiker promises to kill his benefactors once they reach their destination. Director Ida Lupino's film boasts fine performances from Edmond O'Brien, Frank Lovejoy, and William Talman.