Japanese military policeman Jang Jun-cheol kills Mi-ryeong's father and her beloved husband. For revenge, she returns from Hong Kong in 20 years. Just then, detective Yeong-gu has been chasing Jang Jun-cheol who is suspected of drug traffic. At last, Jang Jun-cheol is killed by Mi-ryeong. Yeong-gu arrests Mi-ryeong for murder but soon finds out that she is his sister who he has been looking for.