I have a vague memory of this movie I watched that I really enjoyed but it’s been so long I can’t remember the name or most of the plot. I think it was about this man that was trying to break into this home and kill this women. There was a trap set for him near the end where he fell through the floor and was impaled? But saws or something. Then it had something to do with this old women with dementia that was maybe telling a story but she apparently knew what was happening and she smiled at the end of the movie.