Drought has transfigured Southern California into a surreal, phantasmagoric landscape. Most of the Southwest has been evacuated. Luz and Ray are holdouts, squatting in a starlet's abandoned mansion and subsisting on rationed cola and whatever they can loot, scavenge, and improvise, their love somehow blooming in this arid place. But when they cross paths with a mysterious child, the thirst for a better future begins.