Await Further Instructions

It's Christmas Day and the dysfunctional Milgram family wake to find a mysterious black substance surrounding their house. Something monumental is clearly happening right outside their door, but what exactly - an industrial accident, a terrorist attack, a nuclear war? All their limited information now comes from the television. But as the ominous gogglebox exerts an ever more sinister grip on their psyches, their terrified paranoia escalates into bloody carnage.