It's mentally ill.
All of these epithets might suit to describe this book. I think some people might not even read it fully.
The story basically concentrates on few young people having everything in their lives. What I liked the most, that the author shows what is happening in their heads, but this is fully revealed only in the end of the book. One of the main quotes of the book is: "Everything we want is what we are trained to want". And only reading this book fully you can see to what sick thoughts, actions and consequences it could a damaged mind bring to.
If you think you can imagine all freaky-pervert show, you should really read this one!