《"case scene" reflects the criminal police team in a large metropolis in northern china. faced with criminal cases with distinct characteristics of the times, such as "homicide", "kidnapping", "secret stealing", "aggression", "drug trafficking", "cyber crime", and "financial crime", the detectives used rich knowledge, keen eyes, meticulous reasoning, scientific means and arduous investigations to accurately and timely find out the suspects again and again, so that the case will be revealed to the world, punish evil and promote good, and maintain social order and the dignity of the law. the tv series "case site" mainly promotes the tradition of "punishing evil and promoting good" for thousands of years. moreover, the series has been proposed more than once that china is not a paradise for criminals. all crimes in chinese territory, regardless of nationality, race, social status, and reasons for crime, will be tried by chinese laws.