This book was terrifying. Joe was such a scary person and his perspective was so disturbing. It made the entire book for me. Over four hundred pages and I never got tired of his creepy actions and justifications for everything he did, no matter how bad it got. It was fascinating and disturbing. I was immediately drawn into this book for that reason and it didn't let me go until the end.

The only thing I didn't like so much about this book was that it felt a little flat to me. Joe was so well done, but outside of his narration, it was a mediocre thriller. The end didn't feel like a climactic peak and it kept a steady level of fear throughout. But Joe terrified me and that was enough for this book to be great. I could see rereading this at some point, which I don't do often with thrillers.

I would highly recommend this book to people who enjoy disturbing thrillers and are intrigued by the premise of a story narrated by the stalker.