Kathryn West, a glamorous American widow, arrives in Italy several weeks after the death of her older, extremely wealthy husband. With the help of Brian, her lawyer, Kathryn moves into a luxurious villa and proceeds to lead a lonely, uneventful existence until one day, a handsome young man named Peter Donovan shows up at the front gate, looking for tools so he can fix his sports car. Kathryn lets him stay the night, and the next thing she knows, she's madly making love to him in the shower. Peter eventually moves in, and is soon joined by a free spirit he introduces as Eva, his sister. Kathryn enjoys their company and partying with them - until she begins to suspect that Peter and Eva aren't what they seem to be.

The sins of the father are visited on his descendants in this Italian Giallo modeled on Agatha Christie's 'Ten Little Indians' about nine high-society types being bumped off while locked inside an abandoned playhouse. Bennati's stylish thriller collides with the paranormal barely 30 minutes in, teases the audience with it, before finally embracing its ghostly underpinnings during the finale. Till the curtain closes it's all a big mystery as to the identity of the killer wearing one of the eeriest masks that rivals those of all your finer slasher epics. Often surreal in a dark fairy tale sort of way, Bennati's directorial tour de force is a nice melding of erotic mystery and the supernatural; so reserve your seat for this haunted play.

Ippolita is a paralyzed young woman with serious mental problems stemming from the death of her mother. Her crisis of faith and the intervention of a well-meaning psychologist lead Ippolita to remember her past life as a witch during the Inquisition. Eventually, Ippolita becomes possessed and starts seducing local men, only to kill them. An exorcism seems to be the only solution to stop the madness.

A later entry into the giallo genre following the "Ten little indians" mold of Agatha Christie. 9 members of a bourgeois family are stalked by a killer. One by one they are murdered as the remaining family members have to figure out who the killer is.

Diablo is a biker gang leader executed for the murder of a young woman. A year after his death, it’s time for Spring Break. Football players Skip and Ronnie head to the beach, where Skip meets Gail, the sister of the woman who was murdered a year ago. All the fun and glory of Spring Break, however, is about to turn into a living nightmare when a mysterious person in a biker outfit begins to kill people by electrocution. Could it be that Diablo has returned from the dead?

Oliver & Ruth are a young couple who just got marry, Oliver is a widower. They decide to live into an old mansion belonging to his family in which under strange circumstances, his first wife died. once in there they are greeted by his sister and his stepmother. Oliver is still haunted by the dead of his first wife, and soon Ruth begins to suspect that in was not an accident what caused the death.

Two hippies find themselves on the run from the law and soon end up going undercover in a villa owned by a mysterious woman.