First 30mins were v.good, set the mood, used the flashback device to tell how it started, sort of. Reminded me of The Mist but not as good. So many unanswered questions. Who were the ghosts/spirits/creatures? It started in Romania and Russia? Was it a Putin biological attack that gone bad?

Were they aliens from planet Zlopadop? Who knows? Why could some survive without covering their eyes while others killed themselves instantly? If birds could live, does that mean this thing affected only humans? Why didn't we see a single animal then? No cats, no dogs, not even a cockroach.

How could you sail a river and drive a car around streets strewn with bodies, debris, vehicles blindfolded? A sat nav? Oh please. Where were the Army? Why couldn't the creatures just break a window to get the survivours?

You didn't really care about the characters, and the pacing was slow, could have cut lot of dialogue and got on with the story. John Malkovich and Sandra Bullock stood out for me. Better than average sci-fi end of the world movie but nothing special.