Narin, Chairman of the Suphawat Group, returns from a business trip and walks in on his wife, Parinda, being beaten by her confinement nanny, Walaiporn — leaving her hemorrhaging after childbirth. He saves his wife's life, only to discover the whole thing was orchestrated by his mother, Sompong: the top-rated nanny was swapped out, drugs were slipped into Parinda's soup over a long period, and there was a plot to send their daughter, Ningning, away. Narin investigates layer by layer and uncovers that Walaiporn is actually his mother's illegitimate daughter from before her marriage — mother and daughter working together to clear the path for their own descendant. He clears out the family estate, seizes back the shares, and takes his mother and sister to court — ultimately protecting his wife and daughter, as Parinda rebuilds her career as a bridal gown designer.
