After a relaxing anniversary cruise, Andrea and his wife Barbara are dropped off in Istanbul, Turkey. There, they meet Andrea’s reserved assistant Silvia and his Turkish colleague Omar, who hasn’t been back to his home country in fifteen years. Andrea’s secretary has arranged a luxurious seafront villa for them to stay in while they’re in the country. Upon arriving at the villa, Omar experiences an unsettling feeling of déjà vu, as though he has been in the house before, while the married couple can’t stop bickering. However, the vacation soon turns into a nightmare when mysterious and deadly events begin to unfold.
Cops and a reporter attempt to capture a mysterious killer plaguing the city.
A beautiful young woman sets her sights on an aging millionaire. She seduces him, and moves into his mansion with him. She soon tires of him, though, and after she gets rid of him, she goes after his son.
Diana, a high-class prostitute trying to escape from a serial killer, suffers a car accident that leaves her blind and kills the family of Chin, a ten-year-old boy.
When New York is caught in the grip of a sadistic serial killer who preys on patrons of the city's underground bars, young rookie Steve Burns infiltrates the S&M subculture to try and lure him out of the shadows.
A hunting party arrives at a lodge in the Tatra mountains in Slovakia, where one woman in the party had “accidentally” shot and killed her first husband some time ago.
When socialite and heiress Julie Wardh begins receiving blackmail letters attributed to a mysterious serial killer, she suspects her cruel and sadistic former lover Jean is behind them. With her husband Neil frequently out of town, she falls into the arms of her friend's cousin George, and as the unknown assassin begins to make his move, she fears that one of the three men in her life may be the killer.
Daniel, a writer seeking seclusion to work on his new book, finds himself stranded at a rural bed and breakfast run by a strange and prudish young woman and her ailing, wheelchair-bound husband who remains shut in his room all day. As night falls, a psychotic, razor-wielding killer begins stalking the bed and breakfast, brutally slashing the throats of its most sex-crazed guests, whose bodies and luggage then mysteriously disappear the following morning...
A mute woman, traumatized by her parents' death, faces new horrors when her cousin is murdered by a suspected killer. As danger looms, the truth proves far more complex.
Inspector Angelo De Paul is assigned to investigate a horrifying series of murders that have gripped Venice and left the authorities baffled.
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.
Bob Crane has long maintained a psychic connection to his twin sister, Jessica, who works as a fashion model in Milan. When Bob senses that his sister might be injured or killed, he travels to Italy to look for her, only to discover that she's vanished without a trace. Enlisting the help of about-to-retire Commissioner Danesi, Bob soon finds himself embroiled in a web of mystery and terror, when a scissors wielding killer begins to strike and all clues lead back to Jessica...
Giorgio Mainardi, a womanizer, plans to rid himself of his wealthy wife Norma. He happens to see a sinister figure disposing of a body and seizes the opportunity to make a deal in which the killer will murder Norma. The deed is done but a young couple, Luca and Laura, unwittingly steal the killer's car, complete with Norma's corpse in the boot. They head for the beach and break into an abandoned old house. The killer tracks them down and while Luca is out having sex with a blonde stranger, he terrorises and rapes Laura. When the young man and the blonde turn up for a threesome they are both quickly despatched. After a struggle, Laura manages to fatally wound her attacker. Back in the city, the police become increasingly suspicious of Giorgio Mainardi...
The wife of a financially struggling businessman is blackmailed by a mysterious man into having a sadistic relationship with him, or he will release damning evidence that suggests that her husband is a murderer.
Valentina, a beautiful fashion model, takes an experimental drug as part of a scientific experiment. While influenced by the drug, Valentina has a vision of a young woman being brutally murdered with a viciously spiked glove. It turns out that a woman was killed in exactly the same way not long ago and soon Valentina finds herself stalked by the same killer.
While searching for their estranged mother, two beautiful sisters, Dagmar and Ursula, arrive at a luxurious seaside hotel. At the same time, a mysterious killer starts murdering promiscuous women in the area.
Carroll Baker plays a dual role as translator Julie Harrison and her twin sister Mary. The serpentine plot begins as Julie tells her lawyer Dave Barton that Mary's life is being threatened in London while Julie herself is being stalked by a mysterious stranger in Amsterdam.
Two seemingly separate stories in New South Wales: a burned, murdered body of a young woman is found on the beach, and a retired inspector makes inquiries; also, Linda, a waitress and ferry attendant, has several lovers and marries one, but continues seeing the others. The police have a suspect in the murder, but the retired inspector is convinced they're wrong; he continues a methodical investigation. Linda and her husband separate, and there are complications. Will the stories cross or are they already twisted together?
Police commissioner Santamaria is investigating the murder of the ambiguous architect Mr. Garrone. The investigations soon drive him into the Torino's high society. Santamaria suspect Anna Carla and at the same time falls in love for her. Lello is the lover of Massimo, Anna Carla’s gay friend. He is following another direction in order to find out the truth, and his results are confusing the Policeman. But another murder happens...
Clara, the sexually frustrated wife of a businessman goes on vacation with her husband, daughter and best friend. While there, she finally learns that sex can be passionate and wonderful, something she was never able to discover with the help of her husband. Unfortunately, she learns this with a handsome lifeguard, who finally makes her succumb to his psycho-sexual games.