Norman Frayne is wracked with insecurity and self-doubt over his work and over his marriage to a beautiful woman, Paula. His worries are compounded when a former acquaintance shows up and blackmails him regarding a crime that happened twelve years ago. When the lout shows too much interest in Paula, Norman's anxiety reaches a breaking point. Norman wires the car with dynamite when his blackmailer demands it for a trip. Norman and Paula then have an argument in which Paula professes her love to him and Norman storms out of the house to the garage. He blows himself up with the car rather than murder his blackmailer. The detective explains to Paula that Norman must have really loved her.