Sisters of Death is a 1976 American film directed by Joseph Mazzuca and starring Claudia Jennings.
The film was released theatrically in the United States by First American Films in 1977 but was filmed in 1972.The film was released as a downloadable Video on Demand by Rifftrax on April 25, 2014. The release included a running, mocking, commentary by Mike Nelson, Kevin Murphy and Bill Corbett of Mystery Science Theater 3000 fame. ........
Source: Wikipedia