Vampires have taken over the world. Our cities are laid waste. Most humans have been reduced to the status of farm animals, forced to give up their blood to their new masters. Only a few are still free. One such is Charles Gray, a humble police officer working for the vampires. But a band of resolute humans have banded together to fight against their vampire overlords and restore human freedoms. They call themselves the Sons of Man, and Gray has been charged with hunting them down.

But he learns two things: his own brother is the leader of the freedom fighters, and they have an ally-someone even vampires are afraid of. For the Old Gods are returning.