Pino Scalise discharged from the prison he was in for robbery, take refuge in Milan at the home of his uncle. Pino falls in love with one of the uncle's two daughters, who has become a prostitute because of Don Ciccio, head of a gang that traffics in drugs. Pino, now an informer to Police Commissioner Morani, makes plans to take the boss down.

A masked serial killer with psychosexual issues strangles female coeds with scarves before dismembering them. When a wealthy student identifies one of the scarves and thinks she has a lead on a suspect, she becomes the killer's next target, retreating to her family's remote cliffside villa with three of her girlfriends.