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....
After a winter storm strands five friends in a remote cabin with no power and little food, disorientation slowly claims their sanity as each of them succumbs to a fear that the snow itself may be contaminated or somehow evil....
