Le notti della violenza

A masked serial killer with psychosexual issues strangles female coeds with scarves before dismembering them. When a wealthy student identifies one of the scarves and thinks she has a lead on a suspect, she becomes the killer's next target, retreating to her family's remote cliffside villa with three of her girlfriends.

Roberto, a drummer in a rock band, keeps receiving weird phone calls and being followed by a mysterious man. One night he manages to catch up with his persecutor and tries to get him to talk but in the ensuing struggle he accidentally stabs him. He runs away, but he understands his troubles have just begun when the following day he receives an envelope with photos of him killing the man. Someone is killing all his friends and trying to frame him for the murders.

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 tourist witnesses a murder and finds herself caught up in a series of bloody killings.

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.

Isabella, a young model, is murdered by a mysterious masked figure at a fashion house in Rome. When her diary, which details the house employees' many vices, disappears, the masked killer begins killing off all the models in and around the house to find it.

A woman is strangled in the bath by a black-gloved killer who disposes of her body in a large trunk. The trunk is delivered to St. Hilda College, an exclusive finishing school. Betty-Anne, one of the female students, is strangled in the school cellar. The police, led by Inspector Durand, are called in to investigate. Suspects include La Floret, the voyeuristic gardener; Di Brazzi, the new swimming instructor; Mrs. Clay, the summer school French mistress; an old professor who collects birds; and a philandering young teacher called Richard. The murders continue but Jill, a keen amateur detective, helps the police identify the unlikely killer...

Anne is convinced she has found her husband's corpse, but Dr. Mark can only find out that the man has gone home. When he comes back, his wife does not trust Mark, who believes she suffers from schizophrenia.

A photographer's model is found murdered, sparking a police investigation that targets her ex-boyfriend. As more models die and murder videos surface, the true identity of the killer becomes uncertain.

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.

When a young female student is savagely killed in a park during a thunderstorm, the culprit seems obvious: TV sports personality Alessandro Marchi, seen fleeing the scene of the crime by numerous eyewitnesses. The evidence against him is damning... but is it all too convenient? And when the killer strikes again while Marchi is in custody, it quickly becomes apparent that there's more to the case than meets the eye...