One of the things that appeared in No Exit were questions. The valet says that Garcin is asking the same questions that everyone else does when they first arrive in hell. This reminded me of a scene in Supernatural. (It always comes back to that for me). Dean is awarded the power to be a reaper for a day. Every time he takes someone they ask the same questions such as Why is this happening? and What happens now? I just thought the connection was interesting.