The Flower with Petals of Steel (1973)

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.

As a police officer investigates the gruesome murder of her colleague, she discovers that a mysterious supernatural force is behind it.

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 madman haunted by the ghost of his ex-wife carves a corpse-laden trail.

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...

A woman recovering from a nervous breakdown tries to convince her husband and and the local London police that she has witnessed a murder in the abandoned house next door.

With his partner, a celebrity performance artist publicly showcases the metamorphosis of his organs in avant-garde performances. An investigator from the National Organ Registry obsessively tracks their movements, which is when a mysterious group is revealed... Their mission — to use the artist's notoriety to shed light on the next phase of human evolution.

Unhappily married Richard Mason concocts a meticulous scheme to kill his shrewish wife so that he'll be free to marry her sister.

Jon Lansdale is a comic book artist who loses his right hand in a car accident. The hand was not found at the scene of the accident, but it soon returns by itself to follow Jon around, and murder those who anger him.

Single father and former cop Tom Cutler has an unusual occupation: he cleans up death scenes. But when he's called in to sterilize a wealthy suburban residence after a brutal shooting, Cutler is shocked to learn he may have unknowingly erased crucial evidence, entangling himself in a dirty criminal cover-up.