The only true film noir ever directed by a woman, this tour-de-force thriller (considered by many, including Lupino herself, to be her best film) is a classic, tension-packed, three-way dance of death about two middle-class American homebodies (Edmond O'Brien and Frank Lovejoy) on vacation in Mexico on a long-awaited fishing trip.

Suddenly their car and their very lives are commandeered by psychopathic serial killer Emmett Myers (William Talman).