I'm looking for an old french porn film, the main actress was similar to this one.

The plot was about some kind of mind-controlling pill. At the beginning there was a very intense music, with noir vibe. First scene was very long, at some kind of parking area. When they started to have sex, one man was just watching, as a cuckold I guess. There was a lot of strange action in a plot. At some moment there was a very muscular woman even. As I remember, the film was made around 80's-90's. Thank you for help