In 1991, Busan, Bae Jung-gil, who had been working as a housekeeper for Moon, the owner of a leading travel agency, suddenly disappears. After following rumours here and there, Moon finally finds Bae hiding in the house of her son and discovers that she was once a comfort woman. After realising that the only cure for these women are the Japanese government's official statement of apology and compensation, Moon strives to help the victims by preparing for trial on her own expense.