Filmed in only sixteen days.
William Lundigan plays the lead role originally slated for at-that-time RKO actor Lawrence Tierney, whose off-screen arrests for public intoxication and brawling lost him the role. Ironically, another Richard Fleischer-directed noir, Bersaglio umano (1949), was to star Tierney, who was replaced by Bill Williams.
The title is spoken by Lt. Harry Grant after handcuffing the suspect near the end of the film.
According to contemporary articles in the film press in 1947, the story by Francis Rosenwald and Anthony Mann was purchased by Jack Wrather's production company to star Don Castle and was to be released by Allied Artists. RKO then purchased the story from Wrather in December 1947.