For the last three years, sleep has become an increasing source of terror for Emma Hart, with nightmares that have turned into chilling visions. Her newly married ex-husband, Joshua, wants custody of their three-year old daughter, Amelia, and will seemingly stop at nothing to get it. What is it that Joshua hides? What shapes his behavior, turning a loving husband into a cruel opponent?

Emma knows she needs to unlock her unconscious quickly, before the visions take over and she loses both her daughter and her mind. But how does she do that, and when the truth finally surfaces, for...