Seven strangers find themselves trapped in an underground storage facility, struggling to survive while being hunted by a supernatural beast that resides inside the mysterious 13th unit.
75 years ago, several people were slaughtered in an underground building... this year, it happens again.
Mike, Floyd and Kendra are your average grad school students who are weekend thrill seekers. So when Mike stumbles upon an article from a 70 year old murder that revolves around lost "price-less" artifacts, the group dives in to find the legendary "Stones of the Ontume" - which leads them into a trap, fighting for their lives against the supernatural demon of the Ontume.
Heartbroken and unstable, Rachel drags her best friend Dana to her storage building to throw away a cheating boyfriend's valuables. They unknowingly, find themselves trapped like rats in a supernatural maze, hunted by the beast.
Greg is Todd's best friends, his brother, with him through good and bad, even the death Rachel, the jewel of his life. So obviously, Greg helps him move Rachel's stuff in storage, unfortunately they find themselves trapped, dazed a confused, while being hunted by the creature.
