Description
In Perugia, the murder of several university students leads to a manhunt for a masked killer with a psychosexual disorder who uses red-and-black foulards to strangle his female victims before mutilating their bodies. When a wealthy student named Dani vaguely recalls having seen someone wearing such a scarf, she becomes the target of the mystery killer and, at her philandering uncle's suggestion, invites three of her girlfriends (two of them, lipstick lesbians) to stay with her at her family's remote country villa in Tagliacozzo.
However, the isolated cliffside villa offers no protection from the killer, who has meanwhile run over the blackmailing street vendor he buys his scarves from. A local peeping tom and then Dani's impotent stalker (who wears a similar red-and-black scarf to the killer's) go up to the villa, only to be ruthlessly killed too. One of the girls, Jane, sprains her ankle and a local doctor gives her a sedative; as such, she is asleep when the killer forces his way into the villa and kills her three girlfriends. Jane wakes up the next day only to silently witness the unidentified killer dismember her friends' bodies. Having disposed of the corpses, the killer locks up the villa and departs, inadvertently leaving the injured Jane trapped inside. Later on, having realized that Jane is alive in the villa, the killer silently returns and reveals himself to her.
The killer is Franz, an art history lecturer whom Jane had befriended. He is a psychopathic misogynist as a result of a childhood trauma when he witnessed his brother fall to his death as he was trying to fetch a little girl's doll at a cliff's edge. Franz tells Jane that his first two victims (whom he calls "filthy bitches" and "dolls made out of flesh and blood") had seduced him into a threesome and then blackmailed him. He had continued his killing spree in order to cover his tracks. As Franz proceeds to murder Jane to ensure he is never caught, the doctor shows up and, after a struggle, Franz falls to his death.
