Very reminiscent of Room, this is a dark mystery novel that's a real page turner. While Sayers is wholly unlikeable at first, we grow to empathize with him as he finds himself trapped in a bunker-like prison. I had some issues with the portrayals of mental health throughout, but it was interesting that the reader also isn't cognizant of how much time has passed in his captivity. I did enjoy how Sayers evolves as a character and learns from the mistakes of his past, I just wish that we got to see him seek treatment after this harrowing experience.