This book hooked me from the get-go. The twists were also well done, they were well foreshadowed and I hadn't expected several of them. The fact that it brought up the double standard of how female serial killers compared to male ones are treated in media really hit the spot for me, as did some of the double standards in relationships. I enjoyed both main characters, and I deeply felt for Ro in the situation she was in and felt bad for her at the end.