Living in London's East-end in the early 50's where moral standards had declined, finds Stanley and his mother living in the first of Diane houses. Diane still works in the shadowy world of prostitution and criminals, and his one aim is to protect his mother from the very elements on whom she depended for her living. In doing this Stanley gradually becomes a killer. So when Diane opens an Escort Agency the villains want part of the action. Stanley takes action and proves he has become a calculating assassin.