A woman dressed in black is murdering young women. The police question lawyer Anselmi for whom one of the girls worked as a secretary, and it turns out that all the victims were friends of lawyer’s wife Leonora.
Rocco Spinone, a young Italian living in America, takes on any job to make ends meet, including acting in porn films, a job his friend Lilly does with whom he soon falls in love. Persecuted by a police officer, an anti-immigrant, who accuses him of having sex with an underage girl, the young man is forced to pay a large sum to him and the girl’s father. Meanwhile, his friend dies on set during a scene that was too violent.
The film begins when a stranger arrives in town. He takes quickly to his former mistress, Denise, who is happily married to John, and has an affair with his identiske twin brother Peter. They plan together to drive John crazy. After unsuccessful attempts to blackmail the couple receive the stranger, Gert, to help them with their evil plan.
In Copenhagen, a blind pianist hunts the culprit in string of murders, each linked by the presence of a yellow shawl and a black cat.
A rich, mentally-unstable man with a penchant for playing deadly S&M games with women who resemble his dead wife, sparks off a chain of bizarre events after getting remarried.
A 20th century European village is haunted by the ghost of a murderous little girl.
