Late on a Friday night, Tim and Ralph are getting ready to leave the office. On their way out, they meet a co-worker, Sam, who is on his way in. The men have a casual exchange and Tim and Ralph proceed to take the elevator. On the way down, a sudden and violent explosion stalls the elevator, trapping the men inside. As time passes, the encounter with their co-worker, Sam, begins to take on added significance for Tim and Ralph.