Shen Zhiyi lived in seclusion in a teahouse after her divorce, but on a rainy night she received an anonymous medical record - her sister Shen Zhiyu's child was actually born through surrogacy three years ago, and the biological father was not her husband. When Shen Zhiyu attended her mother-in-law's birthday party as a 'good wife and mother', Shen Zhiyi dumped the hospital records in public, causing an uproar in the city. Lin Wantang's testimony, A Zhou's surveillance, and Zhou Huaizhi's relics combined to create a well-planned fertility scam. The war between sisters is no longer just about marriage, but an abyss showdown of blood, lies and redemption.