David Barron’s pregnant wife and young daughter are killed by a hit and run driver, Malcolm Fox, in a stolen car. When Fox is sentenced to 5 years in prison, for dangerous driving, David tells a reporter that he had better stay in jail for as long as he can, because he will be a ‘dead man walking’ when he comes out.
David feels he must avenge his family’s death and meticulously plans the ingenious murder of Fox. He carries it out when Fox is released. The police are, at first, baffled by how the murder was done but eventually work it out and arrest David.