In Under the Naked Sky we follow ten-year-old Elvie, who lives with her mother on a camping site run by her grandfather. Elvie's mother is mentally impaired, having the mind and manners of a four-year-old.

The story follows Elvie, an inquisitive and headstrong young girl who lives in a wooded area in a mobile home with her intellectually disabled mother - a loving but naive woman who has difficulty understanding others. The film takes place during one long summer in which Elvie's life is about to change forever. As she matures, she starts to see and understand the world in a way her mother is incapable of. A deeply emotional story of trust, love, frustration and loneliness.—Revolver