Twenty years ago 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 people suffering from the fallout of the radiation, some kind of social stigma. Radiophobia is a touching documentary shot entirely in Chernobyl's 'Forbidden Zone'.