WOW! I think that's a good word for this book. This is a book that Harlan Coben wrote but never published - I'm not sure what made him to decide to publish it now but I'm glad he did. It was really good. I must say that I thought some of it was a little far fetched but Harlan does a very good job at stringing you along with no clear answers for a long time leaving you guessing the whole time.
Definite recommend for anyone who likes a good mystery/suspense.