Three Women with Grudges(1981)

Original title: 삼원녀

In the northern Manchuria, Yun, a Korean is troubled by his son Ji-ryong's relationship with Geum-hwa, a Chinese maiden. His servant Il-chun and his wife gets Ji-ryong sent to Korea and they kill Geum-hwa. Then they frame Yun for the murder and blackmail. Ji-ryong comes back from Kaeseong to investigate Geum-hwa's death and her friend Yeon-chu helps him. But Il-chun and his wife are after Yoon and his fortune and they'll stop at nothing to get it. Yun and Ji-ryong's lives are in danger but at the last minute, Yeon-chu shows up and gets rid of Il-chun and his wife and Ji-ryong avenges Geum-hwa's death.