Fiona Warren swapped her daughter with the Preston family's daughter for revenge after her husband died. Twenty years later, Chloe Preston has bone cancer and suffers torture in the Preston family. Joy Lee impersonates the daughter, and the Preston family is malicious towards Chloe. The Preston family discovers the truth, regrets it. Mason Preston turns himself in, Chloe Preston leaves, and starts a new life. The Preston parents devote themselves to charity.