Five years ago, Luna, a slum girl, was forced by wealthy matriarch Ellen to jump off a building. She gave birth to their son Neo alone. Five years later, Neo suffers from leukemia and urgently needs a bone marrow transplant. Luna reunites with her ex-boyfriend Ken, now the chief orthopedic surgeon. To protect her son, Luna hides the truth and signs an agreement with Ken. Yet she loses her baby amid successive plots by Ellen and Ken’s fiancée Tina, then flees to France. After uncovering everything, Ken commits his mother to a psychiatric hospital and sends Tina to prison. He finally finds Luna, and the family of three reunites.
