Unknown Person

One year after her sister Melanie mysteriously disappeared, Clover and her friends head into the remote valley where she vanished in search of answers. Exploring an abandoned visitor center, they find themselves stalked by a masked killer and horrifically murdered one by one...only to wake up and find themselves back at the beginning of the same evening.

A young woman struggling with addiction comes into possession of an ancient puzzle box, unaware that its purpose is to summon the Cenobites, a group of sadistic supernatural beings from another dimension.