The Blackout

No meteorites hit Earth, no atomic war was started, but contact between most towns on Earth has been severed. A small ring-like area in Eastern Europe still has electricity, and maybe even life is being reported from the Space. What military forces find outside the Ring is shocking. There are dead corpses everywhere: in stores, in cars, on roads and railway stations. Scientists determine the cause of death to be a toxin produced by people’s own bodies. Who or what is destroying all life on Earth?