Luigi (Cesar Romero)is the owner of a pin-table saloon frequented by questionable characters and kept under constant police surveillance. He meets Barbara Gale (Kay Kendall), neglected wife of heavy gambler Gerald Gale (John Penrose) and after a brief romance, Barbara agrees to go away with Luigi. But Angelo Abbe (Simone Silva) is found stabbed to death in Luigi's apartment. Luigi asks his friend Limpy (Victor Maddern) to hep him hide the body but they are picked up by the police. Luigi escapes and sets out to prove his innocence while running from the law.