Friends since college, Patrick considers Joey and Shep closer than brothers, and never in their decade long friendship has he doubted their character. But after Joey's wealthy family members begin dying in mysterious accidents, Patrick becomes frightened by the radical shift in the behavior of his two best friends. But when a federal agent pressures Patrick to go undercover and spy on them, he learns he's barely scratched the surface, and the men he thought he knew have been hiding a chilling secret about who, and what they are.