After several Catholic school pupils are murdered, a teacher who is having an affair with one of his students becomes a suspect. When other gruesome murders start occurring shortly thereafter, the teacher suspects that he may be the cause of them.
An elderly heiress is killed by her husband who wants control of her fortunes. What ensues is an all-out murder spree as relatives and friends attempt to reduce the inheritance playing field, complicated by some teenagers who decide to camp out in a dilapidated building on the estate.
An American writer living in Rome witnesses an attempted murder that is connected to an ongoing killing spree in the city, and conducts his own investigation despite himself and his girlfriend being targeted by the killer.
A cop suspects his wife's infidelity, only to become the prime suspect when she's murdered. A criminal psychologist believes the real killer is a presumed-dead serial killer, as more murders unfold.
As a thirteen year old, Martha Caldwell witnessed the death of her parents in a terrible railway accident. Barely surviving the tragedy herself, Martha was struck dumb due to the shock. Now an adult, the still mute Martha lives with her uncle Ralph in the Spanish countryside. Martha's cousing Jenny arrives to be with the family but is quickly stabbed to death. It appears that a sex maniac is roaming the countryside; killing pretty young girls. The already traumatized Martha seems likely to be the next victim but the case turns out to be far more complicated than it would first seem.
A newsman works with a blind puzzle-solver to uncover a deadly conspiracy linked to a genetic research facility.
A wealthy playboy gathers a group of bourgeois friends at his isolated beach house for a weekend of relaxation. When bodies start pilling up, they realize they’re trapped with a killer in their midst, sending them in a frenzy to figure out who amongst them is killing the others before they are killed next.
After a French prostitute is found dead, one of her regular clients is tried and convicted for her murder. He is eventually sentenced to death but dies in a high speed pursuit after attempting to escape custody. Soon, the witnesses that testified against him end up being systematically murdered by a mysterious killer wearing black gloves.
An American journalist in Prague searches for his girlfriend who has suddenly disappeared.
Three sisters - voluptuous Vida, Maria (nicknamed "Sissy"), and Ludmilla - live together in a run-down apartment building in Budapest. The sisters all vie for the attentions of Yuri Petkov, a dubious middle-aged pimp who plays them off against each other. One evening, Ludmilla claims to have found Yuri's body stuffed into their washing machine, but when Inspector Stacev arrives to investigate the body has disappeared. The good-looking young inspector attempts to discover the truth but in doing so becomes drawn into the sisters' bizarre sex games...
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.
In Miami, Florida, biker gang leader Edward "Diablo" Santer is about to be executed for murder when he proclaims his innocence and vows revenge from the grave. When a mysterious biker comes to town during Spring Break festivities, leaving several teenagers electrocuted to death, some begin to suspect that Santer has made good on his promise.
Alongside Sydney's golden beaches stands one of the city's oldest and most mysterious houses - Red Rabbit Lodge, a sanctuary for foreign students during their final college years, including Abigail Mason, trying to put her traumatic past behind her. Unbeknownst to her and the other lodgers, the house has a history of blood and mayhem - and a sadistic killer who still hides within the walls.
Between a four-year gap in the murder of a young girl, the daughter of a well-known sculptor is discovered dead, and her parents conduct an investigation, only to discover they are in over their heads as the body-count keeps rising.
A beautiful American woman infiltrates the home of a novelist and his wife so she can investigate the disappearance of her lover — who was her employers’ previous secretary — and soon finds herself the target of the couple's erotic desires and a murder plot.
In the summer of 1979, gay porn producer Anne sets out to film her most ambitious film yet, but her actors are picked off, one by one, by a mysterious killer.
Police are in hot pursuit of a criminal who is evading capture on a speeding motorbike. He takes refuge in an overgrown castle’s grounds and sees a pale woman burying a corpse in a shallow grave. Thirteen years later, after being recaptured and serving his sentence, the man returns to the castle, intent on blackmail — and maybe a few other things.
A group of friends decide to spend a weekend in a castle belonging to Riccardo, a moody and hyper-sensitive young artist. The only other inhabitants of the castle are a mysterious housekeeper, Caterina, and the demented Aldo. The group are joined by two friends: Serena and a young American medium, Anthony. During a seance Anthony predicts a tragedy, then leaves the castle, shocked by his own visions. An hour later, Serena is found strangled to death in bed. The others become gradually more and more diffident and suspicious, especially when another girl is murdered...
Marco, a television journalist, reads "red lies" on his teletext system in order to gather material on the homosexual world for a story he's working on. Unfortunately, he is implicated in a series of murders in which the victims are all gay. Marco becomes a suspect and is forced to investigate the crimes himself in order to prove his innocence.
Against the wishes of her Aunt Valeria, attractive Milena travels to Milan in order to secretly marry Marco Giraldi. Three years later, Milena returns to her hometown Fermo, where her husband's shoe business is in financial difficulties. Shortly afterwards, she is abducted, a valuable painting is stolen and Aunt Valeriais murdered. Two young villains, who carried out the dirty work, are then killed...