If you loved Confessions d'une épouse, try Les Baisers
Un pont entre un film que tu as déjà vu et un que peu de gens ont croisé. Voici ce qu'ils partagent, et ce que le second fait que le premier ne fait pas.
Ce qu'ils partagent
Both films are directed by Yasuzō Masumura, and they both carry the bittersweet mood tag, and they sit in Drama / Romance territory. If that's the register that drew you to Confessions d'une épouse, the second film will land in a comparable space — through a different lens.
bittersweet
What Les Baisers is
The 1957 film stages childhood’s first romance as a prison-visit icebreaker. Two kids gamble their way to a beach day after checking in on incarcerated fathers. A boxy 4:3 snapshot of fleeting innocence that ages like over-exposed film stock.

