Andrew Kinsler stars as scientist Roy in this British psychological thriller directed by Richard Mundy. Roy has been tasked with maintaining Plethura, an underground bunker designed as a shelter for impending global, nuclear disaster. Although unsure of events on the surface, Roy keeps the bunker prepared for those who, he is told, will eventually need it. However, locked in and with no contact from the outside world, Roy becomes increasingly isolated and very aware that nobody is coming to join him. With only the bunker's intelligent computer as company, Roy gradually begins to unravel and questions whether or not he is truly alone.