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 **** the inmates to have sex with male prisoners, filming them and selling it as pornoflicks.
Maria (Lina Romay) is sentenced to life in prison for the murder of her sexually abusive father (Jess Franco). Upon her arrival at the prison, she meets the cold-blooded, sadistic wardress (Monica Swinn) and the spineless and equally sadistic Dr. Costa (Paul Müller). Together the two systematically torture and abuse the inmates, including Maria, who organizes a plan to rebel and escape. This ‘plot’ serves as an excuse for Franco to dpict countless scenes of laughable violence and sordid sex, including lesbian trysts and female masturbation, with the director’s wild ****m lens performing close-up gynaecological examinations whenever possible.