Down-on-her-luck actress Su Wanxing enters into a marriage of convenience with cold-hearted CEO Gu Chenzhou to comfort Gu Yan, who has selective mutism. As they spend time together, she discovers that Gu Yan is her long-lost child, secretly switched at birth years ago by her stepsister, Su Manning. The two join forces to expose forged paternity test results and sinister schemes, overcoming countless hardships to stay together. Su Wanxing regains her acting glory and establishes her own film company. Together with their child, she and Gu Chenzhou hold a wedding and build a happy family.