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 Girl in Cabin 13 Plot Summary and Synopsis
A group of three masked men start taking out their sadistic fantasies on an unsuspecting couple living in a secluded cabin.
Source: Wikipedia (CC BY-SA 3.0).