The Girl Who Knew Too Much (1963)

Detectives Jake Doyle and Mary Kelly seek the help of an incarcerated serial killer named The Artist when a copycat killer strikes. While Mary searches for clues in The Artist's brilliant but twisted psyche, she and Jake are lured into a diabolical game of cat and mouse, racing against time to stay one step ahead of The Artist and his copycat.

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.

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 and retired police detective and a young amateur sleuth team up to find a serial killer whom has resumed a killing spree in Turin, Italy after a 17-year hiatus.

A female serial killer who killed four young girls is sent away to prison, but a fifth victim escaped with her life. Twenty years later, the killer escapes and begins hunting for the one who got away.

Rich entrepreneur Rebecca Zuin has died from an alleged heart attack, raising suspicions on the part of a police inspector after her body disappears from the morgue. When her handsome young husband becomes a suspect, he starts thinking she may have faked her death to sadistically torment him.

When a kidnapping victim turns up alive after fifteen years, a profiler and a private investigator try to piece together the mystery.

Two women—Diana, a flamboyant and ruthless thief, and Evie, a seemingly innocent young woman with a troubled past—become embroiled in a series of horrific murders on the island of Malta.

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.

After a heist, four criminals lay low in a remote safehouse, waiting for orders. As paranoia builds, one thing becomes clear — the real threat may not be outside, but among them.