A masked killer stalks an institution for mentally disturbed rich women.

Enrico is a photographer with questionable ethics.

Donna Costanza is married to a New Jersey mafia boss. During their 10 year wedding anniversary party he is shot and killed. His dying words to her are "Giarratana from Palermo". Costanza takes a trip to Palermo in order to avenge the death of her husband. Her target is Don Giarratana, a dangerous and influential Italian politician.

When the eyewitness to a brutal murder decides not to testify, the actual murderer chooses to finger him as the murderer and claim eyewitness status for himself.

An archaeology student photographs a mysterious naked woman by a waterfall, unaware that she is a female demon called Haggia, who soon takes possession of him via a cursed amulet.