Lou - a lapsed novelist and UFO enthusiast who has returned to his home state of Mississippi after decades away - drives for a ramshackle taxi company that operates on the outskirts of a college town among the trailer parks and housing projects. With Lou's way of life fast vanishing, an ex-dispatcher resurfaces in town on the lam, triggering a bedlam shift which will test Lou's sanity and perhaps cost him his life. Against this backdrop, Lou has to keep driving, and driving - even if that means aiding and abetting the host of criminal misfits haunting the back seat of his Town Car.