[4] The film was later released on video as The Tormentor, Maniac at Large, The Night of the Rolling Heads and Devil Blade.

)[5] Kitty (Susan Scott) is vacationing in Italy with her parents to again meet with her boyfriend Alberto (Robert Hoffmann).

A woman is killed in her apartment by being stabbed to death by a killer in a black hat, glasses, and overcoat.

When Kitty fails to get the attention of an off-duty fire brigade officer, she tells Alberto, and they go to the police.

Alberto is later called by the cleaning lady, who brings him to her apartment and tries to extort him in exchange for information about the killer.

Magda returns to her hotel room, where the killer is hiding under the bed and proceeds to smother her with a pillow.

She comes to the Arrighi house, and when Lidia asks her to wait, the woman sees a photo and flees in horror from recognizing something in it.

The killer creeps into the backseat of her car before driving off, careening her off the road from grabbing her throat with the cane, and slashes her to death.

Kitty and Alberto try to look for other leads, and they realize Magda and the two women first murdered all attended the same dance academy.