Captive animals often develop repetitive, self-destructive behaviors: pacing in tight circles, swaying, over-grooming to the point of bald patches, biting at bars. This film calls that pattern zoochosis and examines why it appears in zoos, circuses, and other enclosures where animals cannot perform the natural behaviors evolution built them for, from hunting and foraging to roaming long distances. Footage shows big cats wearing paths into concrete floors, elephants rocking in place, and primates engaging in behaviors never observed in the wild. The film lays out the gap between an enclosure's size and an animal's natural range, and between a zoo's stated conservation mission and the visible stress on display. It treats zoochosis as a diagnostic sign, a visible symptom of an invisible problem, and asks what responsibility keepers and institutions bear for conditions that produce it. The tone is observational and critical rather than sensational, letting the repeated movements speak for the argument.