Seo-hee, a genius doctor, saves Tae-seo and marries him, only to discover a cruel truth: their son is actually the child of Tae-seo and his mistress, and her marriage was a total forgery. Framed by the mistress, Seo-hee is brutally attacked by Tae-seo, who breaks her hand and pushes her into a river. She survives and starts a new life, but later reunites with Tae-seo as he begs her to save his dying son.