Knife of Glass

A maniac on the loose is committing savage acts of slaughter, and one survivor may be the only key to unmasking the serial slayer known as the Half-Moon Killer. The mysterious half-moon lockets he leaves with his victims could be the only key to unraveling his sinister motives, but will that be enough before he completes his ice-cold plot to claim his intended seven victims?

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.

A San Francisco doctor encounters a prostitute who bears a striking resemblance to his late wife.

Three young hobby archeologists witness a satanic ritual in a secluded villa. Instead of helping poor female victims they decide to secretly document the events.

Luciano Persichetti is hypersensitive and convinced that he has paranormal powers. Susanna, a parapsychology student with whom he is in love, tries to help him interpret the paranormal warning messages he is receiving. When Luciano turns out to be haunted by a mysterious killer who calls himself "The Guardian Angel", Susanna discovers that Luciano's paranormal powers are not real at all.

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 he and his girlfriend being targeted by the killer.

Events take a sinister turn one night in London, when two very different couples arrive at a double-booked apartment. Actions have consequences and not all debts are paid for with money. Leaving, it's harder than you think.

Elena Serpieri is an Italian neurologist who is in the United States, because she obtained a scholarship in a New York hospital. There she works together with the FBI on the profile of a dangerous serial killer.

In 1980s Hollywood, adult film star and aspiring actress Maxine Minx finally gets her big break. But as a mysterious killer stalks the starlets of Hollywood, a trail of blood threatens to reveal her sinister past.

A young man falls in love with a beautiful woman being chased by sinister masked figures at night. He tries to track her down, and learns she's being held captive by his father and colleagues who believe she's a vampire.

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.

There are a number of inheritors to a fortune who are getting killed by a mysterious somebody whom we do not see. Each death is novel, but not terribly graphic. Who did it?

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...

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.

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.

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.

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 newsman works with a blind puzzle-solver to uncover a deadly conspiracy linked to a genetic research facility.