When I was younger, early 90s, I saw a flick I believe to be about a killer old woman. I think a group of teens/young adults go to a run down house to fix it up and run afoul an old lady ghost. I remember a few scenes like a flash back of a girl seeing the woman kill her (the woman’s) husband, and another scene where the teens try and escape the house but find the doors locked and windows unbreakable. I know it’s a long shot but hopefully this is all the same movie.