In a future after society collapsed and reformed itself in the worst way possible. Slavery and ownership of others is once again a normal thing. Except now they are kept in metal collars that are hooked directly into the nervous system. These allow the owners complete physical control over their slaves bodies. The amount of restriction they are under is shown in via a light emitted across the front. Green for being 'safe' and under tighter control, Red for being allowed more freedom and potentially 'unsafe'. Collared slaves are used for everything from physical labor, extremely dangerous jobs and even for sexual gratification. If the collar is ever removed the shock to their system kills the wearer. Once you are a slave, you can never be anything else.
The story begins in June. It will not be for the feint of heart, the easily offended or the prude.