This is the masterpiece of the Polish genius Zulawski. The goddess Adjani won the Cannes and César double actress with this film "Possessed" and "Quartet" in the same year.
Adjani played two roles in the film, one is a pure and kind female teacher with green eyes and golden ponytails, and the other is a black-haired, blue-eyed, paranoid and neurotic heroine. It is worth mentioning that even the heroine has a self-split mentality.
The plot is that the housewife played by Adjani wants to divorce her husband who is an agent. The husband can only send a detective to investigate, but he finds that his wife's affair is actually a Cthulhu demon with tentacles and mucus all over his body.