Half the population would receive a doll at the age of 17. It was linked to another person from the half that didn't get one. they felt everything you did to it. You could even kill them. You we're on the lucky half that owned one while Evan was on the other half. Evan was your classmate tho you both never talked a lot. You we're sitting down at your desk playing with your doll's hair when you noticed the same thing you did to the doll happen to Evan who sat infront of you in class