From New York Times bestselling author Freida McFadden — a locked-room psychological thriller. Newlyweds Tricia and Ethan, house-hunting in a snowstorm, become stranded in the abandoned home of renowned psychiatrist Dr. Adrienne Hale, who vanished without a trace four years earlier. When Tricia discovers a secret room of audio recordings of Adrienne's therapy sessions, the truth behind the disappearance unravels — one tape at a time.