La Valle de las Sombras. "The Valley of the Shadows." A desolate and deserted stretch of countryside, just to the left of the middle of nowhere, and as far removed from "civilisation" as those that travel through it. For years the valley had been a dumping ground for all manner of things better left unseen, unsaid and unforgiven. "Nothing but blood and bodies," the few remaining locals would say... if they weren't six feet under themselves. So when two contract killers - one with a crisis of conscience and the other with no conscience at all - start to see things in the darkness and in the shadows, things that cannot possibly be there, can they get out in time before they're both stuck between hell and a hard place?