Ok I watched a movie probably around 1986 or 1987. It was about a housewife who meticulously cleaned on a pretty rigid schedule, she cooked and did everything very systematically and chore like for her husband. Then she discovers her husband is having an affair and stabs him. I thought the male actor was james caan but apparently it isn't. I remember a scenes of her dusting the banisters. There wasn't a lot of dialogue as I recall. This is an obscure movie I am sure but does it sound familiar to anyone else
Doubtful, but possible: http://366weirdmovies.com/capsule-jeanne-dielman-23-quai-du-commerce-1080-bruxelles-1975/. (http://366weirdmovies.com/capsule-jeanne-dielman-23-quai-du-commerce-1080-bruxelles-1975/.)
I had a friend who mentioned a movie that sounds close to what you are describing, although I have never seen it.
Could it be the film, Silent Scream?