 Gambler Glenn Falkner (Russell Thorson) is murdered by George Castle (Joe De Santis), who tries to collect a debt from Falkner s daughter, Stephanie (Peggy McCay). Michael Garvin Sr. (Lyle Talbot) asks Perry Mason to represent Stephanie if anything happens. Sure enough, Castle is murdered and Stephanie is charged. The case becomes confusing when not one, but three identical revolvers circulate among the persons of interest.