The Mouthpiece

Vincent Day (Warren William) is a prosecutor who is on the fast track to success. When a man he zealously prosecuted all the way to the electric chair is found to have been innocent, he becomes distressed and quits his job. At the suggestion of a friendly bartender (Guy Kibbee), he decides to switch teams and become a defense attorney specializing in the representation of gangsters and other unsavory people. He will use any tactic to get his clients acquitted, up to and including drinking a slow-acting poison from a bottle of evidence to prove that the substance isn't lethal. The jury acquits the man not knowing that immediately after, Day rushes into a mob doctor's office for a pre-arranged stomach pump.