Wake up. Wash. Eat. Exercise. Secure the building. Watch TV. And trick yourself into thinking that you're safe, inside, where they can't hurt you.
It is Day (?) of the apocalypse. A man carries out the routine as he has done since 'It' happened. The same routine, day in, day out. But is tradition and routine keeping him sane, or driving him further towards insanity? What are those 'things' outside? And wasn't it tradition and routine that brought us to the end of the world anyway?