It's hard for me to say if I liked or disliked this book. There were moments that I enjoyed but the book itself wasn't something that I craved to keep reading. Perhaps it is so realistic at times that it's depressing.
Perrotta gets inside the heads of the unhappy adults in this book and tells their stories of unhappy marriages, affairs, socially unacceptable behaviour and the choices they make to try to change their lives.
As I was reading, I was imagining it as a movie. Although, I haven't seen the actual movie, I think it could improve the story.
The basic moral I get from this is that most of the characters either behave like children or want to be children again, free of responsibility and free of the chains that hold them in their adult lives.