Slim Jim Carey, the leader of a criminal gang, is in reality a nobleman called Lord Talbois, and his daughter is the rightful heir to the family estate. When "Slim Jim"'s gang finds out about this, they conspire to cheat her out of her inheritance by passing off one of the gangster's girlfriends as the real daughter. Unbeknownst to the gang, however, their leader isn't dead and finds out what they're up to. Complications ensue.