5 teenagers named Jamie, Chris, Maddie, Caleb, and Ashley are about to have the time of their lives strangely, in a morgue but that's gonna change once they find out one of their friends come up missing while they're in there...
One year after the death and disappearance of twin sisters Hannah and Beth, nine friends (Y/N, Sam, Josh, Mike, Jessica, Ashley, Chris, Emily, and Matt) return to the cabin in the mountains belonging to the parents of their friend Josh, brother of the missing sisters. Shortly after arriving, the friends realize that they may not be the only people on this mountain.