I just finished this on Saturday (it's Tuesday now), and I can't even remember what it's about, without thinking really hard. It started out slowly, but got more interesting as I got further in. Another Picoult book, so there's lots of characters to keep track of, and lots of time periods to get straight. There's some interesting stuff about the eugenics movement in Vermont and the way it affected the characters. Lots about love, some stuff about parent-child relationships, and a good deal about ghosts.
It was pretty hard to keep the characters straight, which is really too bad when the actual relationships (she's her mother, he's her father, she's really that guy's granddaughter, etc.) are such an integral part of the story. It was worth reading, and it was enjoyable, but I wasn't quite satisfied in the end.