A revenge thriller film that tells the story of the pain of a brother and sister who were taken to Brothers Welfare Center in the past and punishes them directly because the law cannot punish them for their wounds and pain at the welfare center. Based on the webtoon of the same name by Lee Ik-su.
Lee Young Kook is a widower with three children. He still hasn’t gotten over the death of his wife. He decides to hire Park Dan Dan as a live-in tutor for his kids and he becomes attracted to her. Meanwhile, Park Dan Dan has bright and positive personality despite her harsh situation.