The Locked Door Book by Freida McFadden

The Locked Door by Freida McFadden is a psychological thriller about Dr. August Salinger, a renowned surgeon with a dark past. When a series of gruesome murders occur, and one of his patients goes missing, he becomes the prime suspect. As the story unfolds, secrets about his past and his connection to the crimes come to light, leaving readers questioning what is real and who can be trusted