What movie am I talking about?

I’m trying to find a movie from the 80’s or maybe the 90’s. I don’t remember the title or any of the actors. I dont remember much of the story either, but in the end of the movie I remember that a lady is getting in to a caravan and she is trying to follow the man who is driving (kidnapper) that also has a dead body in the trunk. He is on his way home at this segment of the film. At one point, the kidnapper hears the lady and it ends with him trapping her and tying her to a chair or something in the livingroom. During the movie he also has a little girl trapped in the basement. I dont remember if the lady knows about the little girl but as she is trying to escape she finds her and has to convince her to escape with her. The little girl is hard to reach because she is brainwashed and thinks her life is in the basement. So the lady is building trust by feeding her while the kidnapper is away. But in the end when they are escaping, the kidnapper notices and tries to stop them and it ends with when they burn him alive in his own house (which I remember looks like a cabin or something)