The Locked Room

I had a very vague idea based on a dream I had. I was in a house with no stairs. Instead, each door had two locks and depending on which one was locked, the door led to a different room.

So in the story a large family moves in, but they don't get the key to one of the rooms. The main character ends up with the room opposite that one. I never did figure out what was in there so the story never went anywhere, but if anyone else can think of anything interesting you're free to run with it.

AAP by KeikoCharna