All Ella Novotny wants is a good night's sleep and someone to share her life with. Maybe some calm, too. A break from the everyday hustle.Yet everything around her seems to elevate her dealing with her bitter mother's health problems, navigating a boss' who takes advantage of her kindness, coming home to an empty house. Not even therapy can stave off the nightmares.She never expected to find love in the most terrifying of places.One night, the improbable happens. Ella is thrust into a romantic affair with her sleep paralysis demon, Mara, through whom she discovers an intoxicating source of power in a world not meant for her. A world of living nightmares who feast upon the fears of sleeping humans.Torn between these two worlds, Ella wrestles with her desire for a normal life, uncovering a strength she can have all to herself, and an impossible relationship with a woman who has haunted her for her entire adult life.When danger slips past the nightmares and into our world, Ella discovers whether Mara truly loves her or if she's just another monster using Ella for her fear.