What would it be like to share dreams with friends? How useful would it be to get work done while dreaming? In Somnus, a virtual reality universe generated from users' dreams, all of that is possible. But Esme Trahan has discovered a way to exploit this fantasy paradise for personal and financial gain: from within Somnus, she has the ability to break into people's minds and absorb their memories. Thus far, she has managed to keep her unethical, voyeuristic, tendencies a secret. But when an individual known only as the Knightmare begins using those same abilities to torture and destroy his victims' minds, including that of her own brother, her desire for vengeance threatens to expose her to the world. Investigating the Knightmare's true identity, Esme is forced to confront his cult of rabid followers, a tenuous political system controlled by social media influencers, and the secret behind her unique abilities.