Blinded by love, homicide lieutenant Ed Cullen (Lee J. Cobb) goes to great lengths to cover up a murder. His coquettish girlfriend Lois (Jane Wyatt) has killed her scheming husband before he could bump her off. John Dall co­stars as Ed's kid brother Andy, a rookie on the force who is determined to break his first big case. These accomplished actors are nearly eclipsed by the incandescent star power of San Francisco and the Golden Gate Bridge. In the hard­boiled film noir tradition, greed, unstoppable sexual attraction, and betrayal, set off a doomed course in which a femme fatale leads a once upstanding citizen down a dark path.