Claudio Argento

A razor-wielding serial killer is on the loose, murdering those around Peter Neal, an American mystery author in Italy to promote his newest novel.

A former circus artist escapes from a mental hospital to rejoin his mother - the leader of a strange religious cult - and is forced to enact brutal murders in her name.

A young man returns from Rome to his sister's satanic New York apartment house.

One night, musician Marcus Daly, looking up from the street below, witnesses the brutal axe murder of a woman in her apartment. Racing to the scene, he just manages to miss the perpetrator... or so he thinks.

An American newcomer to a prestigious German ballet academy comes to realize that the school is a front for something sinister amid a series of grisly murders.