A helpless repairman chooses to jump off the building to end his life after his house was tore down illegally. The policeman Sun Dasheng makes a deep investigation and finds that there is another hidden truth behind this civil dispute which seems simple. He gradually focus on the villain group, represented by Zhao Tai and Cui Jingmin who provoke the police and despise the law publicly. In the face of the temptation of the villain’s money, the warnings of his boss, and the threat of hurting his family, what will he do…