Description：Tong Fan, leader of the special investigation team of the Jiang City Criminal Police Team, hopes to open up a new realm for criminal investigation work and embark on a new path of strengthening the police force with science and technology and conducting scientific criminal investigation by taking advanced courses in crime scene investigation and criminal psychology. He also suggests introducing a psychological counseling mechanism to conduct psychological intervention for police officers who have been in a high-pressure working environment for a long time and face extremely vicious criminals. At this time, a series of vicious cases occurred in Jiang City. The special investigation team fully launched an investigation, but found a huge conspiracy that endangers social security hidden behind the murder. In the investigation of in-depth cases again and again, Tong Fan endured pressure that ordinary people could not bear. He led the members of the special investigation team to use scientific and technological means such as perfect restoration of criminal psychology and crime scenes, keep pace with the times in handling cases, and dispel the fog. After going through hardships and obstacles, the criminals were finally caught in one fell swoop. Special Investigation Team