Isfimovies - Greta, the Mad Butcher (1977)Greta a vicious warden, runs a mental-hospital for young women. A girl deliberately “checks” in to the hospital to find out what has happened to her sister who stayed there. Meanwhile Greta and one of the guards are forcing the inmates to have sex with male prisoners, filming them and selling the recordings as pornoflicks.Jesús FrancoDyanne Thorne, Tania Busselier, Lina Romay, Eric Falk, Angela Ritschard, Howard Maurer, Esther Studer, Peggy Markoff, Esther Moser, Jesús Franco, Dagmar Bürger, Lorli Bucher, Sandra L. Brennan, Alex Exler, Karl Gysling, Roman Huber, Mike Lederer, Sigad Sharaf