Out of the thirty-nine books I've read and reviewed this year, I'd only given five 5-star ratings. Twisted by Marjorie Brody makes it six and stands atop of the stack so far in 2013. In fairness to most of the self-published books I normally read, this one did have a bona fide editor and publisher. It shows. Self-pubbers take note. It sometimes does take a team to make it great even if you choose to self-publish.
M. Night Shyamalan needs to read this book to get his mojo back. The secrets, turns, and twists are well-played and the character development is what drives that. The story tension dips slightly after the well-crafted opening. But it is easily ignored as the story takes off in several braided plot lines (not an easy task), converging to a well-played conclusion that left me as satisfied as if the story elements were the basis of a gourmet feast I'd just consumed. Reality smacks us hard sometimes, and the examination of the courage it takes to ultimately face that reality builds until Sarah owns it--wherever it leads her.
Bottom line: it's a 5. Go read it. In a few years, you'll enjoy the movie.