Kenzie and Genaro are 2 private investigators, though in this book, Gennaro's more a bit part play, having gone back to college. In addition, they're married, and have a kid.
At the end of their last book, they had found a kidnapped 4 tear old (Amanda McCready). In this book, she's gone missing again, so her aunt (who'd got Kenzie and Gennaro involved the first time) has got them involved again. That book was turned into a really good film (Gone Baby Gone) a couple of years ago.
This book isn't as good as the previous books I don't think. I devoured the previous books with a relish. This book was good, and had a lot of the typical Kenzie and Gennaro humour, but there was something missing in the book.
To be honest it felt like someone had attempted to write a "Kenzie and Gennaro" novel in the same way that you paint a picture by numbers. Everything's in the right place, but it still doesn't feel right.
That's a shame, because I loved the first 5 books in the series.