In the visually striking and controversial cult classic "Behind Convent Walls" (1978), directed by the acclaimed Walerian Borowczyk, we are taken deep inside a secluded Italian convent governed by a strict and zealous Abbess (Gabriella Giacobbe). While appearing perfectly devout on the surface, the young, sexually repressed nuns secretly explore their carnal desires through forbidden acts, both with each other and with the few outsiders who manage to infiltrate the sacred walls.