As a resident son-in-law and general manager of the Shen Group, Gu Cheng has spent years running around for the Shen family's business. During a business trip, an unusual phone call makes him realize that his wife, Shen Min, is having an affair in the office. Gu Cheng rushes back to the company to catch them in the act, but is blocked at every turn by his brother-in-law, Shen Cong, and his mother-in-law. At a critical moment, Lin Zi, the president of the Shen Group's rival Lin Group, arrives to help. After breaking down the door, Gu Cheng is horrified to find that the paramour is Gu Zhong. Facing the double betrayal of love and family, Gu Cheng resolves to get a divorce. He no longer hides his strength, joining forces with Lin Zi and his second uncle, Gu Guoping, to launch a revenge against the Shen Group. In the end, Shen Min and Gu Zhong lose both money and property, and Gu Cheng rises from a humble son-in-law to a king of revenge.