Following her father’s passing, Catherine Bomarzini comes back to her ancestral castle in Italy, where she becomes entangled in a mysterious romantic triangle. One of her suitors is a man who alternates between being repellent and captivating, while the other is a nocturnal being whose tender gaze and touch express his boundless love and loyalty. With the assistance of Martha, her devoted childhood nanny, and the spirit of a murdered young girl, Catherine uncovers an ancient curse from the medieval era that endangers their lives, a curse that only she has the power to break.