Since he witnessed the death of his mother when he was a child, John Harrington lives constantly tormented by her memory. Remembering the scene, he feels the need to kill until he finds out who his mother's murderer is.
Mario Bava was born in San Remo on July 31, 1914, son of the director of photography, sculptor and pioneer of special effects Eugenio Bava, he is considered the father of Giallo cinema. His film Blood and Black Lace (1964) is considered one of the first and most influential works of the Italian giallo genre and would pave the way for other filmmakers such as Darío Argento or Lucio Fulci. Among his best-known works are Black Sabbath (1963), Planet of the Vampires (1965), Kill, Baby…Kill! (1966), Hatchet for the Honeymoon (1969), Five Dolls for an August Moon (1970), Roy Colt and Winchester Jack (1970), Four Times That Night (1971), A Bay of Blood (1971), Baron Blood (1972), and Shock (1977). Mario Bava died on April 27, 1980, at the age of 65 due to cardiac arrest.