In a world where modern life is increasingly defined by chronic illness, a growing number of people are turning to the ancient, often overlooked practice of fasting as a potential therapeutic solution. This documentary explores the science behind this practice, tracing its roots from secret Soviet-era research to modern-day clinics in Germany. Through the stories of patients seeking relief from conditions like arthritis, asthma, and hypertension, the film examines how the body adapts to food deprivation, the role of the liver in metabolic transformation, and the potential for fasting to stimulate the body's own healing mechanisms.