Billy Dent made sure to teach his son everything he knows. Jasper knows that he could do exactly what Dear Old Dad did--but he doesn't want to, and reminds himself of it at every turn. He doesn't want to do what his father did, because his father is in prison for killing 124 people in his career as a serial killer. Now there's a second serial killer in town, and Jasper--Jazz--is using what he knows of his father's beginnings to get ahead of the copycat. 
 I've been in a reading funk in which everything has been solidly mediocre; that might be inflating my rating here, but wow. It's the kind of scary book I've been hoping for for a while now. I read a bit at lunch, then stopped to consider why I was feeling so tense and anxious, only to realize that it's this book that was ramping me up. 
 The open ending is really fantastic for a stand-alone book; I'm less enamored with it now that I see the "BOOK ONE" in the title. Fuck sequels and serials forever.