Sister Donna is a devoted nun living a serene life in an ancient and secluded monastery nestled in the misty mountains. Known for her unwavering faith and kindness, Donna is admired by her fellow nuns for her deep compassion and dedication to her spiritual duties. Yet beneath her serene exterior lies a secret fascination with the mystical and the macabre. In the quiet confines of the monastery, Donna pursues her clandestine passion for experimenting with forgotten texts and ancient rituals, often using the monastery’s grounds and its animals—particularly the dogs she has grown to cherish as her companions. These dogs, initially just loyal pets, become part of Donna’s experiments, which she believes may bridge the gap between the divine and the supernatural. When a series of unsettling and inexplicable events begin to plague the monastery—whispers in the night, mysterious disappearances, and eerie visions—Sister Donna’s experiments take on a darker, more urgent tone. Her research into ancient magic and forbidden knowledge leads her to uncover a chilling prophecy: an ancient evil bound within the very walls of the monastery is awakening, seeking to break free and wreak havoc on the world. As the supernatural occurrences intensify, Donna’s experiments with the dogs reveal that they are more than mere animals; they are guardians of a hidden realm with a critical role in sealing away the malevolent force. With the monastery’s sacred protection failing, Donna must rely on her newfound powers, her deep connection with her dogs, and her knowledge of ancient rites to confront the lurking darkness. In this gripping fantasy-horror, Donna - Nun So Deep explores themes of faith, forbidden knowledge, and the battle between light and darkness. Donna must navigate a treacherous path as she faces her deepest fears and darkest secrets to protect her sacred home and save the world from impending doom.