SPOILER ALERT: the following article contains massive spoilers, including the ending. If you have not yet seen the movie, proceed at your own risk, or better, come back to this article later!
SPOILERS AHEAD
The Blackening Plot Summary and Synopsis
A horror film about a group of friends who travel to a remote cabin for a weekend getaway, but find themselves trapped by a mysterious black fog that turns people into monsters.
Source: Wikipedia (CC BY-SA 3.0).