This movie is amazing. It was interesting, and if you paid attention, it makes perfect sense. At the end of the movie, the man killed everyone else so that they wouldn’t be gruesomely murdered like many others in the movie. The mist came from a different dimension, because the people of the army tried to see if there were other dimensions, and this experiment went wrong. It shows how easily people can break, and how long it can take for someone’s breaking point to come. The man killed the people in the car at the end because he thought this would last, because it seemed as if nothing could ever fix the mistake to army made.
* Side note: It’s a horror movie, so don’t expect it to have a happy rom-com ending.