A hospital mix-up switches the medical results of mother-in-law Chen Ying and her daughter-in-law Shen Ting. Believing Shen is the one with terminal stomach cancer, Chen and her unfaithful son, Lin Yuan, plot to abandon her. Discovering their schemes and Lin's affair, Shen decides to fight back with a clever plan. Enlisting an actor to play her wealthy aunt with a fabricated fortune, Shen manipulates Chen into selling the family home. However, the web of deception unravels at a pivotal birthday banquet, where Shen exposes Chen's true illness and strips Lin of everything. Betrayed, destitute, and suffering from advanced cancer, Chen and Lin face the bitter consequences of their greed and cruelty, while Shen emerges triumphant, reclaiming her life and dignity.