Evanescent follows the life of Viktorya Claire, a doctor at a psychiatric hospital in Portland, Maine. As her job brings on more responsibilities, and her nightmares grow stronger, a newcomer quickly sparks her interest. Her interest in her coworker, Khalid, grows and the novel follows their journey. When Viktorya is suddenly attacked on her way home, leaving her badly injured, her nightmares begin surfacing into her daily life. While Viktorya is assured her hallucinations are just part of recovering from her attack, she is unsure. Especially, since those teeth marks still remain on her arm.