Greta – Haus ohne Männer (1977)

Director: Jess Franco
Studio: Elite Film, Cinepix

Starring: Dyanne Thorne, Tania Busselier, Lina Romay, Eric Falk, Angela Ritschard, Howard Maurer, Esther Studer, Peggy Markoff, Esther Moser, Jess Franco, Dagmar Bürger, Lorli Bucher, Sandra L. Brennan, Alex Exler, Karl Gysling.

Description:
—Ilsa (Dyanne Thorne) works as the warden in a psychiatric hospital for young women. Unbeknownst to her, patient Abby is actually the sister of Rosa, one of the hospital’s other patients. Abby has lied in order to get herself admitted in order to find out what has become of her sister and to hopefully rescue her. However she is also unaware that Ilsa uses the hospital’s inmates to create pornography, often against their will. Abby finds herself at the mercy of Juanna, Ilsa’s lover and leader of several of the hospital’s inmates. Juanna tries hard to make Abby respond to her advances, but soon begins to exploit Abby after she refuses to become Juanna’s lover.
—Ilsa, now 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 Ilsa and one of the guards are forcing the inmates to have sex with male prisoners, filming them and selling it as pornoflicks.

Alternate Titles
Greta the Torturer
Greta, la Tortionnaire de Wrede
Greta, the Mad Butcher
Greta, the Sadist
Ilsa, the Wicked Warden
Ilsa: Absolute Power
Wanda, the Wicked Warden