Mom has son living at home, he gets into trouble and she hides him in a hidden room in her house..then she dies and son continues to live in hidden room with new owners...that's all I can remember. I think this was a 70's or maybe late 60's film.
Sounds like Bad Ronald.
http://www.imdb.com/title/tt0071186/
That's it... Thank you so much! I just could not remember the name of that movie.