This one started out kind of slow. The first 1/4 of the book seemed like background setup and character development (which is ok, but not what I usually expect from Patterson). Once new murders started and the flashback scenes began, the pace picked up. I wasn't sure who the killer was - I knew who they wanted me to think was the killer and who I wanted to be the killer, but I didn't know the truth until the very end. That part was kind of fun. There were a couple of twists I didn't see coming, and some I saw way before Detective Jenna Murphy did, but I guess I actually did have more information to work with.
If you like twisty serial killer stories, this is a good one.
I listened to this book for the Free Space.