An alternate version of the film became a made-for-television movie in the USA under the same title. It aired on ABC on November 6, 1971 and starred Shelley Winters as the mother.
In May 1976 this was released in the USA under the title Inn of the Frightened People . When it was released in the USA on video, it was retitled Terror From Under the House . That version is available as a region-free DVD. Region 1 DVD is titled Revenge!.