The human and professional figure of Carlo Urbani entrusted to the testimonies of relatives, friends and to the numerous images and archive footage that portray him in his most significant moments: from his trip to Cambodia, to his move to Vietnam, from the Nobel Prize awarded to Doctors Without Borders, of which he was president, to the commitment paid with his own life to prevent the worldwide spread of the terrible SARS virus. Twenty years after his tragic death, the documentary traces the life of Italian physician Carlo Urbani, who first identified SARS during the epidemic that broke out in Vietnam in 2003, stopping its spread.