Hong Kong experiences a wave of macabre deaths: the victims have been sucked dry and steeped in snake venom. A young detective (Jackie Lui) follows a series of bizarre clues and scours the city's exotic underbelly to track down the killer. A nightclub (that doubles as a brothel) housing five seductive suspects appears to be at the centre of the mystery. The trail leads him to a beautiful and mysterious woman who has a special affinity with snakes. When the policeman's investigations come to a dead end, the chance discovery of a videotape pulls him into a decadent world of deadly drugs, forbidden passion and poisonous murder!