The police plan to capture a killer by using a double that looks exactly as one of his victims.

Victor (Pedro Infante), is blackmailed by an old associate, Eduardo (Eduardo Fajardo), who is a jewel thief. Victor decides to denounce him to the police but gets murdered. Then the police uses Raul (also Pedro Infante), a naive bread delivery guy who happens to look exactly like Victor, to catch Eduardo. Finally Raul helps capture the jewel thief, receives the reward, and marries Victor's girlfriend.—jairhcastillo