The Scorched Triangle [Le triangle écorché]

The 22-year-old Sabine is married to 38 years old Jacques. They have a child. Their emotional life becomes monotonous and she gets bored more and more. So she takes a lover, Pierre, whom she meets in the underground parking lot of the building. Jacques has his doubts about this relationship and says nothing. He hopes to save his family and regain Sabine.