Best friends Lin Shuying and Guan Yinyin marry into the Zhuang family as sisters-in-law on the same day. Shuying is a stand-in for the white moonlight Li Qian, guarding a marriage bed that isn't hers through an "eight-year marriage"; Yinyin fakes a gentle, prayerful persona and marries the philandering second master, Zhuang Yi. A tryst in the storage room on their wedding night, peeping through the master bedroom door crack, a first night beneath prayer beads—two women each endure in silence within the respectable marriages of a wealthy family. Until the maid Xiaotang throws the eldest branch into chaos, and Susu's return home sparks suspicion. Two divorce agreements are laid on the desk—"If you divorce, I divorce too." The jade pendant shatters, and the truths and lies of an eleven-year stand-in scheme are exposed one by one. In the end, both agreements are torn up, and the rocking chair...