Twenty years ago, on April 26, 1986, a security test at Chernobyl's nuclear plant in the former Soviet Union, triggered the greatest civilian nuclear catastrophe in history. Unable to cope with this political, environmental and human disaster, the Soviets built a wall of silence around the event. The term 'radiophobia' came to define the symptoms of the people suffering from the fallout of the radiation, some kind of social 'stigma.' Radiophobia is a touching documentary entirely shot in Chernobyl's 'Forbidden Zone.'