Stan and Charmaine are a married couple trying to stay afloat in the midst of economic and social collapse. Living in their car, surviving on tips from Charmaine's job at a dive bar, they're increasingly vulnerable to roving gangs, and in a rather desperate state. So when they see an advertisement for the Positron Project in the town of Consilience - a 'social experiment' offering stable jobs and a home of their own - they sign up immediately. All they have to do in return for this suburban paradise is give up their freedom every second month, swapping their home for a prison cell. At first, all is well. But slowly, unknown to the other, Stan and Charmaine develop a passionate obsession with their counterparts, the couple that occupy their home when they are in prison.