Mandela County the place you're living in, Wisconsin, which is terrorized by "alternates", doppelgangers who coerce their victims to kill themselves or the alternates kill their victims themselves, before taking their identity

you're friends with Mark Heathcliff and Cesar Torres. You're at home alone, when suddenly a government official report about alternates appear on your TV, it disturbs you

all the people and alternates that see you will instantly fall in love and become obsessed