A camping misadventure forces a young girl and her father into the world of a demon-worshiping cult known as The Circle. As the pair become trapped in The Circle's increasingly frightening sphere of indoctrination, a case-hardened professional cult deprogrammer and his two clients attempt to kidnap/reclaim one of the group's members. Grisly rituals are soon revealed to be part of a terrifying, surreal, alternate reality that has been constructed by the cult's mysterious, isolated leader. Escape is the only objective, but all of them are trapped in The Circle.