After her father's death, Catherine Bomarzini (Sherilyn Fenn) returns to her family's gothic castle in Italy. There, she becomes entangled in a mysterious love triangle involving Lawrence and Oliver, twin brothers cursed to transform into beastmen each day. As Catherine delves deeper into the castle's dark history, she uncovers a 15th-century curse tied to her family and must decide whether to help the good twin break the curse, even if it means risking her own life.