You are FBI agent Ethan Thomas, whose pursuit of relentless serial killers leads him through detailed urban environments filled with terrifyingly real sociopaths who lurk on the periphery of humanity. Gruesome weapons can be fashioned by clever players from the environment: paper-cutter handles, wooden planks and lead pipes ripped from walls can all be used to attack opponents. But watch your step, as enemies don't merely run at you; they find an appropriately powerful weapon to attack with and then hide in the shadows, waiting for an open opportunity to strike.