I just finished this book, and...Wow, what an incredible novel!
Before I started it, I'd read some reviews on Amazon; a lot of people gave this book negative reviews, complaining that it wasn't another Out (which is also fantastic, BTW). I don't think it's fair to compare the two, as they are quite different.
The book is set in modern time Japan, and follows the events leading up to the murders of two prostitutes (who had attended the same elite high school years earlier). The murder is peripheral to the story, and I think is merely used to tie all the characters together by one common storyline. The first half of the book is narrated by the sister of one of the prostitutes, and focuses on the interaction between these characters during their high school years (pretty emotionally brutal stuff). Then the book switches to present time, and narration is taken over by the two prostitutes, in the form of their journals.
It's a very emotionally heavy going book, but it had me hooked from day one. If you are more into psychological character studies, rather than a story full of twists and turns and lots of action, then I recommend this book.
All the characters are pretty despicable, and it