First of all, let me just say that I could see this being turned into an AWESOMELY creepy horror movie, if done well... though I could just as easily see it being toned down into a guilty-pleasure Lifetime flick!
As for the book itself... to be honest, I had mixed feelings about this one. There were several really dark, creepy scenes, which I'm all for(!), so that aspect of it was right up my alley. It actually got pretty suspenseful at times, which is always good! But as far as the basic story, I felt that the characters were somewhat shallow and one-dimensional, and the plotlines a bit unbelievable. I think the main problem for me was that I didn't feel any emotional connection to, or even any interest in, any of the characters. However, it could be just some personal blockage that I have - the overriding theme had to do with open vs. closed adoption, and since I don't have (or want) kids, I rarely feel that I can relate to anything about parenthood - even when it's about grown adult children. It's almost like some strange turn-off for me when stories center on such.
Anyhoo, I was about 50/50 on this one, and I'd give it 3.5 stars!