Detenute violente a.k.a. Captive Women 8 , Captive Women Hell: Hell Penitentiary, Inferno dietro le sbarre

directed by Willie Regent ( a.k.a. Sergio Garrone)
cast: Ajita Wilson, Rita Silva, Linda Jones, Alex Fraybegger

Julia, a famous physician, infiltrates a prison in an attempt to find a witness to her sister's killing, but instead she becomes the victim of a sadistic warden's sexual brutality