A nun, her faith shaken by doubt and desire, finds solace in the arms of her brother, a fellow novice. In the seclusion of the convent's crypt, they explore their taboo feelings, their hands and mouths eager to learn the secrets of each other's bodies. The cold air does little to dampen their ardor as they lose themselves in the dance of flesh, their cries of pleasure echoing through the ancient stones, their souls bound by the chains of illicit love.