LUMINOUS MOTION tells the atmospheric story of a mother and 10-year-old son who are constantly in transition. Phillip (Lloyd) lives his life as if it's a fantasy, and the fact he is almost always riding in a car doesn't help matters. As his mother begins to feel the need to settle down and stop the constant moving, Phillip must confront the real world. He befriends Rodney and Beatrice, two strange children, but eventually realizes that the back seat of his car was where he felt truly safe and free.