When his family is forced to sell part of their property to the government, a new neighborhood springs up behind their house.
This starts a chain reaction that puts increasing pressure on Luke and his family.
Instead of running back to his own house, he pushes his fist through the screen, unlatches the door and lets himself in.
Inside he finds the neighbors' third child is a girl named Jen, one year older than he is.
Only two children are allowed in each family — additional children are usually prevented from being born or are killed.