Paul Conroy is a fairly happy person. But when he wakes up literally 6 feet under in a coffin, the truck driver and family man is in a hellish fight for his life. His only possessions are a cell phone and a lighter, and he must work out why he has been buried and by whom in order to be rescued. Poor reception, little phone battery and a dwindling oxygen supply make his struggle nearly impossible - he has 90 minutes before his time is up.