An armed man enters a United States post office and methodically slaughters his co-workers, before turning the gun on himself. The phomenon is occurring with eerie frequency around the country and law enforcement agencies are helpless to stop it. The public watches in horror as the bloody scene is played out on the five O'clock news. U.S. postal workers are self-destructing in explosive rampages of terror across the nation. With no official explanation for the tragedies, it is a young reporter who unravels the truth...But can she stay alive long enough to tell the story.