Seven years of marriage, Lin Shu sees through the true face of her husband Zhao Feng cheating during the marriage and being calculating. She hires people at a high salary, disguises as a young nanny to lurk at home and collect evidence. Lin Shu lays out her steps step by step, constantly probes Zhao Feng, and calmly sees through the false shell of marriage. She suppresses the pain in her heart, deals with him calmly, quietly accumulates solid evidence of the other party's betrayal and plotting for money, patiently waits for the right time, and prepares to deliver a fatal blow to the scumbag, completely counterattacking this marriage full of deception.