One by one, cities have been falling to a terrorist attack. No one can stop the terrorists or figure out where the next attack will take place. All that is known is when the attacks start, the strange gas the terrorists use turns the moon a blood red, and black shadows of men and women are seen, slinking among the buildings.

Yet, somehow, not a single survivor has managed to provide a solid description of the people attacking their towns. Most contribute this to the mysterious gas that seems to put the residence into a temporary psychotic state, but what if it’s something more than that?