Of all the movies of the famous Dick Tracy comic strip, this is the best, with Ralph Byrd as Tracy. Gruesome (Karloff) has just been released from prison and is looking up his old “friend,” Melody. His boss has perfected a suspension gas that can freeze a room full of people, and Gruesome’s pathological mind puts the gas to work to relieve people of their money. Tracy gets gassed by Gruesome and the craggy faced X-Ray (Skelton Knaggs), who is ordered by Gruesome to burn Tracy’s body in a giant furnace. Tracy comes to in the nick of time, chases Gruesome and kills him in a final shoot out.