chunk: A security guard is running through a subway station, he eventually enters a room he cannot escape from and starts begging his reflection in a mirror for his life. Suddenly, his reflection cuts its throat with a mirror shard, killing the "real" security guard.
  Ben Carson (Kiefer Sutherland), a suspended police detective, begins his first day as a night security guard at the Mayflower, a luxury department store that was gutted by a fire and shuttered five years prior. The building still contains numerous mirrors from the store.