Morton Halas is an aggressive and very successful defense attorney who will stop at nothing to get his clients off. Having successfully defended Big Mike Probich he finds himself working for Larry Coombs, another small-time mobster who has ambition to rise to the top. Coombs and his top enforcer Whitey Metz decide to knock off Probich and take over his network. They succeed but things don't go as smoothly as planned and Eliot Ness soon has an eye witness who can identify both of them.