The innkeeper Barnabáš and the teacher Isidor Slovíčko succumb to the lure of old Moreles, to whom the young Taussig sends enthusiastic letters from America.
Paris, 1888. With the help of forensic medicine, a sensational criminal case is uncovered. The chief of the Paris Sûreté, Inspector Goron, with the help of Lyon University Professor Lacassagne, is able to solve a capital crime that seemed unsolvable according to the methods of forensic science at the time.
Cliff works as a narcotics investigator for the police and infiltrate a mafia gang. Soon it turns out that Cliff has bigger plans than just to bust bad guys.
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.