Yan Songyu, a wealthy heiress and business executive, wakes up in a hospital bed on February 21, 2002, realizing she has been reborn twenty-three years into the past. In her previous life, she was murdered by her husband, Jiang Chengli, and his accomplice, Zhou Yue, after discovering that their newborn daughter, Feifei, had been switched with Zhou Yue’s sickly child. Driven by the trauma of her past life, Yan Songyu rushes to the neonatal intensive care unit and confirms the switch by checking for identifying birthmarks. She successfully swaps the babies back, reclaiming her biological daughter while leaving Zhou Yue’s child in her own crib. She also enlists the help of Feng Yu, a loyal executive and childhood friend, to guard the infant and ensure the switch remains undiscovered.
Yan Songyu overhears Jiang Chengli and Zhou Yue plotting to hide the switched baby in the slums to protect their secret, confirming her suspicions. She resolves to exact revenge, adopting a persona of severe postpartum depression to justify her abusive treatment of Jiang Chengli. She systematically dismantles his life by canceling his financial privileges, blocking his artistic opportunities, and orchestrating physical harm, including breaking his leg and hand, to cripple his pride and career. Meanwhile, she monitors Zhou Yue and the child raised as Yan Mu, witnessing Zhou Yue’s neglect and abuse of the girl, which reinforces Yan Songyu’s resolve to let them suffer the consequences of their actions.
Three years later, Yan Songyu raises Feifei as a beloved and pampered daughter, while Jiang Chengli, now physically disabled and professionally struggling, attempts to rebuild his reputation through painting. Yan Songyu continues her calculated destruction of his life, planning further accidents and sabotage to ensure he falls from grace. The narrative explores the psychological torment inflicted upon Jiang Chengli as he endures Yan Songyu’s cruelty while remaining trapped in the marriage, unable to expose the truth without revealing his own crimes. Yan Songyu’s actions are driven by a desire to avenge her daughter’s past suffering and to punish those who destroyed her family, setting the stage for a prolonged battle of wits and retribution.