Police detective Leo Kessler (Charles Bronson) can't seem to get any evidence on a suspected serial killer (Gene Davis). This guy is sleazy, kinky, and smart - he murders in the nude and creates airtight alibis. He starts to taunt Bronson and stalk his daughter (Lisa Eilbacher). Bronson's frustration with the situation leads him to plant evidence on the killer to get him off the streets, but this move backfires. Intriguing Bronson vehicle made all the more interesting by Gene Davis' performance as the psycho. He's good-looking, well-built, but his obvious rage against women (which really isn't explained) keeps him from having a normal relationship with one.