Almost a year on from fleeing the city of Chicago, accused of a spate of grisly killings, Josh Sawyer has crossed the American border, taking refuge in a small, unknown Mexican town. Hiding from the US authorities, his place of sanctuary quickly turns desperate, as it becomes apparent that this place is harbouring a dark secret of its own. Meanwhile, at the furthest tip of the northern hemisphere, FBI Agent Sebastian Fernandez is posted to Alaska, his special talents required in helping the citizens of Fairbanks to find a ruthless killer, drawn there by an almost perpetual darkness. Only one person can help both Josh and Agent Fernandez. Someone with the ability to understand how the living psyche can become twisted and immoral. Able to think how killers think. Yet, more importantly, kill how they kill.