A documentary filmmaker turns his lens on an enigmatic conspiracy theorist who claims he's found the entrance to a vast underground city populated entirely by monsters.
| Genre | : Kengerian |
| Sutradara | : Adam Green |
| Pemeran | : Ray Wise, Adam Green, Kane Hodder, Mick Garris, Rileah Vanderbilt, Josh Ethier |
| Rilis Resmi | : 01 January 2014 |