When successful San Francisco lawyer Finn Gallagher is found murdered, his young, attractive new wife Risa becomes the prime suspect, though Risa suspects Finn's bitter ex-wife Kit. Risa is defended at the trial by Brett Newcomb, her husband's best friend and partner. His defense fails to keep her from being convicted but en route to the penitentiary, Risa's bus is overtaken by other prisoners and she manages to escape. With the help of her mother Arianna, a hairdresser, Risa gets a new look and eludes the police. Eventually she uncovers enough evidence to point the finger at Newcomb and confronts him in a fiery showdown.