Sister Ubalda, a nun bound by her vows, finds herself torn between her sacred duties and the carnal desires that haunt her dreams. In the quiet of the night, she gives in to her temptations, her fingers exploring her forbidden pleasures as she imagines the novice's touch. As the moonlight casts its glow on her sinful act, Ubalda's moans fill the air, her body writhing with the intensity of her secret, angelic desires.