This book was a roller coaster of emotions. I wanted to read it based on the “Dexter meets Mr. and Mrs. Smith” description I was seeing everywhere but I have to say that it didn’t feel like either of those to me. While there is murder and a husband and wife dynamic, this book felt like a MUCH, MUCH, darker “Gone Girl.” I am going to recommend this to people with a caveat…you need to be comfortable with reading a book about horrible people who commit murder for no other reason than the thrill of it.