at the engagement banquet between the ling family and the gao family, the father and daughter of the gao family wanted to use the media present to give ling feng a warning, but ling feng took the initiative and announced in front of the media that today's engagement partner was xu ya, a blind violin player who was invited to play at the engagement banquet, and xu ya, who seemed to be implicated, was not an innocent and affected little white flower. eee　　 this drama is adapted from the novel "the demon and the tao of the kingdom of heaven". this drama is set in the early 1990s and entered a critical period of economic reform. it takes the struggle between public security police and criminal groups as the main line. it shows the development and changes of the public security team under the background of reform and opening up, and praises the dedication and sacrifice of public security police to maintain social security.