In 1921, Marian Arnold, heiress to a brewing baron's empire, seeks solace on her family's estate as Prohibition and the deaths of her parents cast a shadow over her world. When Marian's sanctuary is invaded by nightmarish visions, she grapples with malevolent forces. With dead butterflies as the killer's signature, murders unfold at a steady pace. In the present, researcher Remy Shaw becomes entangled in an elderly biographer's quest to uncover the truth behind Marian Arnold and the unsolved murders linked to an infamous serial killer. Can Remy expose the evil that lurks beneath broken wings? Or will the dark legacy surrounding the manor destroy another generation?