The big thing is, though the movie suggests it's supposed to be about zombies, it isn't. If I had to guess the titular enemies are more like vengeful wraiths. Even with the in movie explanation, zombie doesn't quite fit. I pondered many possibilities about who or what the nature of the antagonists were but zombie never quite fit. Any of the other half dozen or so thoughts I had would be far more suitable. While the story flowed well, the ending felt a bit lacking. The motivating factor for the antagonists fell a bit flat and didn't quite match what was revealed in the movie. The camera work was better than average and set a gloomy turbulent mood quite well. A couple spots had some plot holes like the room above the objective.
