Synopsis: An erotic film set in a convent, where a Mother Superior tries to maintain order to prevent the nuns from temptation. But when things get out of control, the church inflicts cruel punishment to the nuns for their sins. Behind Convent Walls is an erotic arthouse film by Cult director Walerian Borowzcyk (The Beast). One of the most beautifully shot Nunsploitation films, alongside School of the Holy Beast, with cinematography by Luciano Tovoli (Suspiria).