Jyllian Petrie

A movie based on the true events of two men caving in the Nutty Putty cave system in Utah. As the other cavers' friend becomes stuck in one of the narrow parts of the system, rescue efforts are put in motion to save the man's life.

In an underground facility, five scientists wake from cryosleep with no memory of who they are or how long they've been asleep. They soon make a shocking realization: a killer is hunting them down there, and may even be hiding among them. (imdb)