Nominated for the 2019 Edgar Award, Hammett Prize, and Macavity Award PopSugar's Best Mysteries & Thrillers to Read in Fall 2018 CrimeReads Best Book of 2018 Booklist's Best New Book One of the Most Anticipated Crime Books of 2018 from CrimeReads One of Fall 2018's Most Exciting New Mysteries & Thrillers by Bookish Bookbub's One of the Biggest, Most Anticipated Thrillers of the Season, Fall 2018 Best Mystery Book Pick, and Editors' Pick Library Journal 2018 Killer Thriller From New York Times bestselling author and master of suspense Lisa Unger comes an addictive psychological thriller about a woman on the hunt for her husband's killer. What if the nightmares are actually memories? It's been a year since Poppy's husband, Jack, was brutally murdered during his morning run through Manhattan's Riverside Park. In the immediate aftermath, Poppy spiraled into an oblivion of grief, disappearing for several days only to turn up ragged and confused wearing a tight red dress she didn't recognize. What happened to Poppy during those lost days? And more importantly, what happened to Jack? The case was never solved, and Poppy has finally begun to move on. But those lost days have never stopped haunting her. Poppy starts having nightmares and blackouts--there are periods of time she can't remember, and she's unable to tell the difference between what is real and what she's imagining. When she begins to sense that someone is following her, Poppy is plunged into a game of cat and mouse, determined to unravel the mystery around her husband's death. But can she handle the truth about what really happened?