I give this a 2.5 stars. Unlike the previous 2 books in the series I really wasn't able to make a connection with the character Frank. We know he is an ass-hole. They made that clear in the previous book but in this book we get a more detailed glimpse. The mystery behind Rosie's disappearance was not very surprising. I was able to guess what had happened that night but not who was behind it which was really not that big of a surprise when it was revealed. I do hope the next book is better. 
 (view spoiler)[ The books in this series are about human reactions to adverse situations. You really need to understand the psychology behind the character to understand his motives. I get why Frank left home. And initially I did think Rosie ditching him was the reason he became the person he was but after reading that conversation between Shay and him I had to reconsider. Those were desperate people trying to escape a desperate situation. And Shay's reactions to what happened after was also expected. It does not mean what he did was OK. Like Frank said even though they had thought about it they did not go through with their's father murder. It's difficult to understand where the Mackeys come from having never experienced such a crazy family, but Frank ditching his younger kids and walking out leaving Melly and Shay to bear the burden, the lack of his guilt in doing so, letting his daughter manipulate Shay, all that was just so wrong. (hide spoiler)]