Interior Design presents a gallery of people who, for all their strangeness, seem deeply, touchingly familiar as they explore the designs of their private inner thoughts. Huddled under his covers with a flashlight, a young boy lies awake listening to his parents' bitter arguments, and he draws maps of imaginary planets on tennis balls, creating little worlds where his troubled family is somehow happy. A young man becomes obsessed with the idea of his guardian angel, and lives each day believing that it jealously hovers at his side, hungry for his every thought.