Loving Adults (2022) on Netflix

Follows a couple who appear to be living the perfect life after their son is declared healthy following a long-term illness.

Christian keeps parked in the woods so Leonora can't see him. She runs out there on the road, his wife through twenty years. With music in his ears, immersed in his race and in himself. She sees nothing, has no idea that in a little while hidden from the darkness and the rain he will catch up with her from behind, with the car's lights off. And brutally put an end to their marriage.