The Dark Room

1982 Australian Thriller is worth a look at.

When a son realizers that his father is having an affair with a much younger and sexier woman, his mind tips over the edge. What starts as a scandalous affair turns into the son having a relationship with the same woman. This turns into blackmail which results in a chilling climax. Unmissable for fans of Thrillers! Indeeed they are plentiful things that make this suspenseful motion picture work and not just the occasional steamy sex scenes, but also the never-ending chills. Just because this movie isn't very well known and I am the very first individual to write a comment on this does not mean that it isn't of a high standard-4 out of 5!