Teratopia

People hide in their cities from a world teeming with monsters. A Shining Darkness becomes the god of the cities... and the citizens invite the monsters in. Human life is made inhuman or is deemed "useless" and fed to horrors. Men and women flee into the perilous wilderness and hide in the ruins of an earlier civilization. Their own people come after them, costumed as monsters and with murderous intent. The fight for survival becomes a strange war that shall decide the fate of humanity.