A detective suspects that his wife murdered a gangster's brother. As he tries to misdirect the police and the bloodthirsty gangster while independently investigating his wife, terrible secrets slowly begin to surface.

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.