The habitual thief Li Shaohua mysteriously died at home, and the head of the criminal police team, Wu Feng, was responsible for investigating the case. As the investigation progressed, suspicion fell on Zhu Zi, the general manager of Shengtian Company. Wu Feng and Shengtian grew up as good brothers, and their families had a deep bond due to their successful jewelry business. Wu Feng discovered that the jewelry products from Shengtian Company had unknown origins, and the police's suspicions were gradually confirmed, revealing that Zhu Zi was the mastermind behind it. At this time, an even bigger economic crime quietly occurred, as a large money laundering gang had entered the city. The police found that Zhu Zi was closely linked to this gang. To lay a long line, they temporarily set aside the arrest of Zhu Zi. After thorough investigation, it turned out that the true mastermind was actually the couple running Shengtian. Because of the relationship with Shengtian, Wu Feng requested to withdraw from the case, but the leadership approved him to continue the investigation. Shengtian realized that the police suspected him and ordered Zhu Zi to steal jewelry wildly to divert the police's attention, buying time for his money laundering plan. The law's net is wide but not loose; evil cannot ultimately triumph over justice. Faced with his crimes, Shengtian ultimately chose to end his own life.