While inching through a bleak, watercolor world with a blade in hand, a swarm of rats streams through a security door. It seems like nothing more than a random environmental detail at first. They attack if you do, but otherwise the rodents leave you alone. Soon you find a woman being accosted by thugs. After the fight to save her, the woman flees into the shadows and is promptly overwhelmed by the very same rats that bring her down in grisly fashion...