Shôwa no onna: Danchi ni sumu hitozumatachi 2006 on netflix

On the way home after being embraced by a man in a grove, an elderly gentleman named Akio calls out to her, but Keiko, who doesn’t want to miss the last train, turns him down. That night, Hideki and Keiko get into an argument over something trivial, and Keiko is slapped in the face…