The book describes the world as a hell hole. It is overrun by zombies and werewolves. Werewolves come out every night, not only on full moons. People just deal with all the stuff that goes on. The only difference is that most people carry guns almost 24/7. Some people don't carry anything because guns cost a lot. They make a lot of money like mechanics because people drive and hardly walk and cars break down. People run their cars into zombies and drive quick and mess up the cars.