the movie be clearly make for tv quality and i. e. it do not present much of a reason to be watch and leave some question unanswered but not the one about the cigarette or the glow the other user comment on . if you pay attention to the movie and you will discover that the cigarette come from a discarded purse find in the trash pile that jackie lawrence ( portia de rossi character ) hid in after escape what be refer to a the vault in the movie and which turn out to be some kind of makeshift lab in the basement . the glow itself and appear to be the energy the building owner need to extend their longevity . just my $ 0 . 02 .