^ Maybe then not have so many rooms and I do actually think it is a really good idea! For an experimental series I think it could work!
Perhaps have it so that they unlock parts of a big house... Zone 2 is access to the big houses main area (Living room bit) and then Square 1 is still the bus, they won't be allowed to sleep anywhere else except in square one
Here is a quick draft of how I would plan the house to look ( Haven't included the inner cirle yet as the main house is more important )
http://i302.photobucket.com/albums/n...emelyBasic.jpg