Unfaithful Night (1968)

Jérôme and Florence, married for five years, come to spend a week's vacation in the Camargue, the very place where they first fell in love. The young woman sees the trip as a pilgrimage to her roots, and a crucial test for rekindling her husband's love and attention. Jérôme, passionate about the great outdoors, space and horses, embarks on exhausting hikes. In the evening, as soon as he gets into bed at the hotel, he falls asleep from exhaustion.