Confession(1966)

Two sisters love a young man, but the man is interested in the older sister. When the older sister realizes that her beloved is also liked by her younger sister, she steps aside for her sake and asks her beloved to make a similar sacrifice for their love. The man does so, but soon the younger sister becomes suspicious of her sister and accuses her of having an affair with her husband. At this point, the man is forced to reveal the truth, and the younger sister, realizing her mistake, leaves them. After many years, the two lovers finally get married.