Though he has come from a rough background on the streets, Muraki (Horoki Matsukata) quickly rises through the ranks by means of his well-honed blackmailing instincts. Desperate to keep rolling with his freewheeling lifestyle, Muraki sees his luck begin to crumble when he sets his sights on the business partners of a powerful gang boss.
Alice White is the daughter of a shopkeeper in 1920's London. Her boyfriend, Frank Webber is a Scotland Yard detective who seems more interested in police work than in her. Frank takes Alice out one night, but she has secretly arranged to meet another man. Later that night Alice agrees to go back to his flat to see his studio. The man has other ideas and as he tries to rape Alice, she defends herself and kills him with a bread knife. When the body is discovered, Frank is assigned to the case, he quickly determines that Alice is the killer, but so has someone else and blackmail is threatened.
A spoiled rich girl hatches a plot with her hippie boyfriend and his friends to "kidnap" her so they can get a large ransom from her wealthy father. However, she didn't count on her villainous, money-crazed stepmother to involve herself in the plot, and things begin to go terribly wrong.