Another thing I really liked, besides the well-developed plot, were the two main characters. I want to get to know them and read more about them. Mike McCabe is a single father raising a 13 year old girl with an ex-wife who has returned for a visitation after several years of absence from their lives. Maggie is a bit mysterious and might have some secrets. The partners work well together and there seems to be a bit of chemistry as well.
If you like a good thriller, ignore the fact that you may or may not find some of the book predictable, and open the cover!