Homes have gone missing. Carly and Michael track three of the runaway houses to a place in the backwoods, where unexpected events threaten their lives and their sanity. Trapped in the dark, they are surrounded by a malefic intelligence that compels them to navigate the ever-shifting walls of a subterranean chamber. In order to survive, they must draw on every skill they possess, but unlocking the secret of the labyrinth will require more than they ever imagined possible.