I really enjoyed this one. It was a great concept and I'm a sucker for an unreliable narrator. It was a very tense psychological thriller with several twists and turns throughout the book that keep you intrigued until the very end. I did not see the final twist coming, which is saying something because as an avid mystery reader I am very rarely surprised. This is a book that people will say is the next "GONE GIRL" and they may be right! It would make a great movie and I hope it gains that level of popularity. The first third of the book is slower to build the world and characters but the second two/thirds of the book more than make up for it as it will certainly keep you guessing until the very end.