This movie I saw in the mid 80s. I was about 7 or 8. What I remember is that a teenage boy accidentally kills a young girl by pushing her down and hitting her head. He freaks out, goes home where his mom lives, and they decide to build a small hidden room in the house to hide from police. Well years go buy and the mom takes care of son, but eventually dies. A new family moves in with man in this hidden room. He sneaks out occasionally and the family finds him at the end of movie and I remember police showing up. The end
