Follows the harrowing journey of three frontiersmen who set out to seek aid at a desolate Army fort after their handcart company becomes stranded and stricken by disease. Harassed by bandits and a mysterious native figure, with one companion gravely injured, they are stalked by a dark, primal force. As the fort reveals itself to be a cursed and maddening prison, fear and hunger twist the men into something unrecognizable—something monstrous.

Follows the lives of three young doctors fresh from medical school, and embarking on their new careers.

一队离经叛道的人受邀到一个废弃的工厂观看一个“放血”活动,展示了酷刑和杀害无辜的人。一旦进入,他们很快意识到,他们已进入了一群嗜血的疯子的陷阱里......