In the 1960s, two classmates go looking for their missing friends and teachers, all of whom took part in an illegal book club, only to come face to face with ghosts and deformed monsters that have taken over their school.

In an attempt to reconcile the problems in their relationship, Myra and James venture to an isolated cabin in the mountains. It is there they encounter an ancient evil that haunts the landscape, capable of turning people into deformed monsters. Not only will they be fighting for their relationship, they will be fighting for their lives.