About a 3.5. The book had my attention from the very start. The twists, turns, and big reveals all had my jaw on the floor. It was amazing how McFadden made the reader think 1 thing and flipped the story at the very end. It's technically not a murder mystery because it seems the author never really wants the reader to "solve" the case. McFadden really just wrote the book for you to read and enjoy the ride. If you can get yourself to let go and just accept what is...then you'll enjoy every second. My brain, unfortunately wants to connect pieces and try to make sense of it all..hence the rating. Overall a fun read and would recommend.