Wealthy businessman Giorgio Mainardi has died of a stomach hemorrhage, but his ghost is not so sure that it was a random misfortune and wants to know the truth. Unfortunately, almost everyone around him is happy to see him gone. Everyone, that is, except for his daughter Rosy, who still feels affection for her father even though they have drifted apart. With her medical student boyfriend, Johnathan, Rosy will try to get to the bottom of her father's death.

Gioia is a buxom centerfold working for Pussycat magazine. In such a profession, having an admirer or two is expected, but Gioia's admirer is a vicious killer! He murders her fellow magazine models one at a time, using a variety of twisted implements of death. Gioia is the lucky recipient of a collection of photos, each with murdered bodies arranged around posters of her.

Paris, 1900: a couple are horribly murdered by a masked man with a metal claw who rips their hearts out. The sole survivor and witness to the massacre is a young girl. Twelve years later in Rome a new wax museum is opened, whose main attractions are lifelike recreations of gruesome murder scenes. A young man bets that he will spend the night in the museum but is found dead the morning after. Soon, people start disappearing from the streets of Rome and the wax museum halls begin filling with new figures...

Paris, 1900: a couple are horribly murdered by a masked man with a metal claw who rips their hearts out. The sole survivor and witness to the massacre is a young girl. Twelve years later in Rome a new wax museum is opened, whose main attractions are lifelike recreations of gruesome murder scenes. A young man bets that he will spend the night in the museum but is found dead the morning after. Soon, people start disappearing from the streets of Rome and the wax museum halls begin filling with new figures...

A man discharged from the hospital after suffering a nervous breakdown is taken to a remote Italian villa by his strangely-behaving wife. But he has strong premonitions that the house is possessed by some force of witchcraft, which he has been experiencing in his recurring nightmare.

People from a small town are attacked by evil radioactive tree roots growing in the forest.

On the little private beach of a wonderful villa on the lakeshore, Martine Chabrol, is attacked and killed. The death although mysterious, since it is related to a theft of jewels in the villa, the case is declared an accident and archived. At least until somebody decides to discover the truth and arrives at the town.

Gianni is a political man with a good career waiting for him. Angela is his wife and she fakes an assault and a rape in a cinema. Eva is Gianni's lover and Angela's friend. Gianni and Eva decide to use the pretext of the assault to kill Angela. Later on Angela is blackmailed by a man who was present at her act. In the background there are Rosy, her maid always present, and a puzzling man who appears and disappears and makes strange phone calls.

Kreola arrives in Santa Domingo to join her photographer husband Andy. Although Andy is initially jealous of Marco, who is in town looking for his missing girlfriend who did not return from Santa Domingo with her coworkers after a girls getaway. When Kreola and Andy site the missing girl Iris in the company of their gruff, dominating sea captain Leon, Andy suggests Kreola distract him so that Marco has a chance of getting Iris back. Kreola scoffs at this but eventually does fall under Leon's spell. Andy's writer friend Jo Ann blames the island atmosphere for the tendency for puritanical Westerners to reject their inhibitions. When Andy and Marco cannot free their women from Leon's influence, things get drastic.