The "cursed house" of the Italian title was also used for Le tueur de la pleine lune (1987) and Body Puzzle (1992).
Francesco De Masi's score also includes a brief snippet of his theme for L'Éventreur de New York (1982) - at about the 46:00 minute mark.
Lo squartatore di New York (1982) referenced: Joanna is stalked on the deck of the Staten Island Ferry by the eerie sing-song of the devil doll, just as the second victim in "Ripper" is, also on the Staten Island Ferry, menaced by the infamous duck quacks of the eponymous murderer there.