In a desperate attempt to get out of debt, career gambler Dan Milner (Robert Mitchum) agrees to rendezvous with a mysterious contact at a distant Mexican resort in exchange for $50,000. Upon arriving, Milner meets his fellow guests, including a plastic surgeon, a philandering movie star (Vincent Price) and his beautiful girlfriend (Jane Russell). Soon Milner discovers that the man who hired him may be the ruthless Nick Ferraro -- a deported Italian gangster who looks just like him.