Every purchase, this film argues, is really a signal about status, mating value, or self-image, whether the buyer admits it or not. Psychology professor Geoffrey Miller lays out the evolutionary case that consumer behavior descends from older instincts for showing off fitness and rank, and the film builds around his argument with additional voices from marketing, psychology, and economics. It traces how advertising exploits those instincts, why people buy things they don't need to impress people they don't like, and how consumer culture scales this impulse into a global economy running on manufactured desire. Examples range from luxury branding to everyday retail psychology, showing how price tags, packaging, and store design are engineered around subconscious triggers rather than rational need. The film treats overconsumption as a byproduct of ancient wiring meeting modern abundance, and asks what happens to a planet and a species when that wiring never gets satisfied. It stays grounded in interviews and concrete examples rather than abstraction.