Ahn Hyun chul

Dr. Yun, an elder ornithologist in North Korea, lost his eldest son in the war and lives with his grandchildren. Myeong-oh, the second son of Dr. Yoon, showed an unusual interest in birds from an early age. One day, he went to South Korea to observe black starlings, but he could not return and became a separated family. Yoon Myeong-oh, who became a famous ornithologist in South Korea, thinks that the North Korean ibis, which disappeared from South Korea during the study, marks it on the bird's ankle and sends it to North Korea, and asks a Japanese scholar for help. One day, while observing a black starling, his father, Dr. Yun, sees a dog tag on a bird's ankle and learns that it was put on by his son in South Korea.

Martial arts movie from the Shaw Brothers.

Seoul, under a drizzling spring rain; Korea is under the rule of Japan. A gisaeng(Korean geisha) named Jeong-ok (Ju Jeung-nyeo) and Myeong-gyu (Lee Min), the son of a bank president, fall in love. However, the bank president, Lee Eun-jik (Kim Seung-ho), placing importance on family background, objects to his son's relationship because of Jeong-ok's occupation. However, Myung-gyu leaves home and sets up a home with Jeong-ok. When Myung-gyu dies, Jeong-ok has his baby, named Yeong-gu (Park Geum-hui). When Eun-jik brings Yeong-gu home to raise him as the family's successor, he becomes impressed with the close relationship between mother and son, finally bringing Jeong-ok into his household and accepting her as his daughter-in-law.