All her life, Topaz Hathor has denied her ability to see the spirits of the dead. She despises her father, an infamous spiritualist for exploiting his wealthy patrons and the souls that flock to him. But when the spirit of an attractive man appears in her bedroom claiming he's been drawn to Topaz rather than her father, she sits up and takes notice.

Though not dead, Romney Marsh has been banished from his body while confined to an asylum and can't remember much besides his name. Yet he can feel Topaz's spirit calling to his, and he's not leaving until she agrees to help him. Through an increasingly violent spiral of danger and their discovery of unspeakable undertakings, they bond ever more closely. But can Topaz be in love with a man she's never touched, or would that be sheer madness?