The Last Distance Between Us(1981)

Original title: Khoảng Cách Còn Lại

The film depicts interconnected lives of various characters in South Vietnam in and after the war: a young girl (Mai) who lost her father (Hau)- a Viet Cong cadre; a woman (Nam) whose deceased husband is a South Vietnamese soldier has feelings for Hau and is trying to protect his daughter; a depressive man (Luong) who used to fight with Nam's husband has strong resentment towards his old army.