The Red Room
I think that this was an ABC special that showed on a Saturday. They always had special kid movies coming on at 10 or 11 or something.
Well, this one was about a kid who gets locked in a red room and a ghost boy (I think he was blonde) tells him there is only one way out of the room and he has to find it. I think the blonde ghost was killed when he was locked in the room during a fire or something.
He figures out he has to go through the chimney to get out. Does this sound familiar?