I have a lot of mixed feelings about this book. I loved the premise (though this book was a bit outside my norm so maybe it's actually unoriginal) and I liked the timeline of going back and forth between the present time and the beginning of the marriage.
But this book didn't grab me. I think the biggest mistake was not setting up any possible suspects. Without promising and interesting leads, a lot of the book was just stalling until the ending could be announced.