The Haunted House of Horror, also titled Horror House and The Dark, is a 1969 British horror film directed by Michael Armstrong and starring Frankie Avalon and Jill Haworth as young adults looking for a thrill by spending the night in an old mansion in the English countryside. The film's tagline was "Behind its forbidden doors an evil secret hides!"

Francis Thomas Avallone , better known as Frankie Avalon, is an American actor, singer, and former teen idol. He had 31 charting U.S. Billboard singles from 1958 to late 1962, including number one hits, "Venus" and "Why" in 1959. He is the earliest surviving singer to have scored a solo number one hit on the Billboard Hot 100.