It's about a teenage boy who's nothing special, and is about to go commit suicide. He finds a dead girl in a stream who is very strange, but she's not dead for long. He gets stuck helping her out. Early in the book he finds out that death is painfully over-rated.
I would not recommend this book. It's just depressing. I kept reading it, hoping it would get better, but it just sort of tapered off in a boring manner.