The freak agent Xing Kai and the police superintendent Ding Luofeng, the two of them have very similar backgrounds, but they embark on different paths.A series of murders linked the two together, Xing Kai and Ding Luofeng appreciated each other and joined forces to capture the murderer.During the process, Xing Kai was forced to find his old enemy, psychologist Yang Zhifei, to help him fight against the murderer.The three of them followed the investigation and found that the murderer was not just one person, but a whole killer organization.The murderer used the layout of the new seven crimes advocated by the mysterious website to execute the deceased who committed the new seven crimes, pointing the finger at everyone in society.The three had to race against time to arrest more victims before they could appear.Xing Kai never expected that there was another unbearable past that was greeted, which made him in trouble; Yang Zhifei did not expect that the case involved his teacher, university professor Fu Yangshan; and Ding Luofeng also discovered that his elder sister Ding Shaoyun, who returned from a foreign country, also had an ulterior motive, which made him face the dilemma of justice and family affection...