Sophie Jordan is just a badass author, I'm now convinced of it. She first wooed me with her Firelight Series, bringing me into a paranormal romance world with dragons/humans. Now she's done it again with the first book in her new series, Uninvited. 
 Uninvited is touted in its synopsis as The Scarlet Letter meets Minority Report (remember that Tom Cruise movie?), and I'd say that's an apt description. But if I had to really nail it down, I'd also say Jordan pulled from our own world history a bit, too, applying the way Nazis treated the Jews in World War II as an example for this story. It's subtle, but it is there. In Uninvited, people are tested for HTS - Homicidal Tendency Syndrome, otherwise known as the "kill gene." 
 Read my full review at The Bawdy Book Blog.