I haven’t read any of this series before but I didn’t feel like I was missing any vital information and I will probably go back and read the rest at some point. In this book, there are two different cases/killers running simultaneously and both of them are the result of vigilantism. We get to see the cases unfold from Jo and both killers POV’s. It’s a nice easy read that isn’t particularly fast paced but still kept me guessing. It wasn’t a book I was desperate to pick up but once I was reading I did enjoy it.