Claude is a young man with a regular job, no history of trouble with the law and no chance of making any real money. He also has the brains and emotional detachment to make the big bucks as a hit man, and that becomes his new job title. A string of successful hits gets him sent to Los Angeles for his latest job. There he is accompanied by two goons: one who is perpetually nervous and the other who quickly worships the young man as a hero. The cold, ruthless hit man finally becomes unglued when he finds out that his latest target is a woman. She's a witness, set to testify against his boss, and guarded day and night by the police. It's her femininity that worries Claude: women are unpredictable, they don't do what you expect. Claude eventually proves that he is the unpredictable one and his own worst enemy.

Dave Bannion is an upright but unscrupulous cop on the trail of a vicious gang he suspects holds power over the police force. Bannion is tipped off after a colleague's suicide and his fellow officers' suspicious silence lead him to believe that they are on the gangsters' payroll. When a bomb meant for him kills his wife instead, Bannion becomes a furious force of vengeance and justice, aided along the way by the gangster's spurned girlfriend Debbie. As Bannion and Debbie fall further and further into the Gangland's insidious and brutal trap, they must use any means necessary (including murder) to get to the truth.