Maria (Suzzanna) goes to prison for murdering her own father. Upon release, she becomes a prostitute and then has a difficult time maintaining a romantic relationship with a young painter once she decides to get out of the business.
In 1913, in Oklahoma, oil derrick owner Lena Doyle, aided by her father and a hobo, is stubbornly drilling for oil despite the pressure from major oil companies to sell her land.
Two rival street gangs from Kowloon go to war over turf and bar girls so as to dominate the area and maximize their takings; however things go from bad to worse as the girls start to get involved in the bloody feud.
Sandro, a detective, finds his wife strangled. His girl-friend Tiffany, who works as photographer, makes a "Blow up" from a photo, what Sandro finds beside the victim.