A suspense thriller that starts off when Sunny receives a letter from her dead sister. Things just get weirder when her sister comes home, but then it turns out that she's not quite the dead sister after all. Confused? Well, throw in a parallel story about an alcoholoic father and a clinically depressed mother, and you have some harrowing other stuff to sort through.
It's actually a pretty good book, but there really aren't any likable characters in it, and that makes for a tough read. So, I guess it's a matter of whether you mind a good story with dislikeable characters, or you need the characters to be likeable as well. I tend to go for the latter, so I don't really go for the book.