Actual rating: 4.5 
 I was falling into a kind of reading slump and this book totally saved me!!! This was a hell of a mind-blowing book. I LOVED IT. 
 I loved the plot, the characters were so complex and interesting and the writing-style was fantastic, nothing lyrical but simple and in a way that is easy to read and follow the story. 
 Overall, I couldn't put this book down and I would recommend it to anybody (even if you don't like thriller novels so much or don't read them that often) but I'm giving it 4.5 stars because of the ending (view spoiler)[At first I was rooting for Amy (actually, Diary Amy) because Nick was a total piece of shit, and for everything, not just for the cheating; although I knew he didn't kill her or anything because that would've been too obvious. But then I felt kind of sorry for him, he wasn't so bad and he was going to pay for a crime he didn't commit just because this wife was a crazy psycho bitch. Anyway, my point is, I'm not satisfied with the ending because I wanted the police (and everyone) to know the real story, what actually happened and I wanted to see Amy paying for what she did. I felt so sorry for Nick, that he had to play good husband and stay with his crazy wife for the sake of his son and because he was afraid he might become like his father. (hide spoiler)]