Louise Redknapp, a size 8 celebrity in her thirties, spends thirty days trying to shrink into a UK size 4, the American size zero prized by fashion runways. The film follows her through a boot-camp fitness regime and a strict crash diet, tracking measurements and weigh-ins as the deadline closes in. Cameras also visit Rhodes Farm Clinic, a treatment center for eating disorders, setting Redknapp's voluntary experiment against patients for whom extreme thinness is a medical crisis rather than a fashion goal. The pairing is meant to expose what the industry demands of its models, but the film spends most of its runtime on Redknapp's own body and results rather than on designers, casting agents, or the models themselves. It offers little beyond her one case: no range of body types, no industry insiders explaining why size zero became the standard, no follow-up on whether the regime is safe to repeat. What it does show plainly is the physical toll of the attempt and the gap between a magazine sample size and an ordinary body forced to fit it in a month.