Middle-class teacher William Smith finds his wife Gilda eloped with her boyfriend, taking everything. Searching for her with sister Susan, they stumble into a gang war between kindhearted Teddy Middlemass and sadistic Mr. Jezzard.

William Smith, a middle-class school teacher from a suburb in London, returns home one day to find his wife Gilda has run off with her boyfriend and taken all his possessions with her. With the help of his sister, Susan, they begin a search for Gilda, and are drawn into the British crime world and become caught in the cross-fire of two crime lords who have been fighting each other all their lives: the kind-natured Teddy Middlemass, and the sadistic Mr. Jezzard.—James Castle