Richard Conte plays a big-city racketeer whose luck runs out on him. He is sent to a Southern prison, but vows to be out and about before long. Applying a little psychology and a lot of cynicism, Conte manages to pull off his escape by firing only one shot. He wheedles his way into becoming a prison trustee, then earns a parole by shooting down an "escaping" convict. Under the Gun is a lively second-feature meller, with Richard Conte exuding his patented cold-blooded charm. ~ Hal Erickson, Rovi