A young woman suffers a car accident. When she awakens, she is locked in a cell under the ground, kidnapped by a strange man (John Goodman) who claims to have saved her from the doomsday. The eccentric captor assures that the exterior is uninhabitable because of a terrible chemical attack, something that does not know to believe. This is how his nightmare begins, in a spiral of ignorance. The criminal’s mind is impassable, and she will have to try to analyze her enemy in order to survive.