In the fictional Linhai City, four weirdos form the "Urban Romance Office", which specializes in undertaking various absurd investigations: helping animal tyrants verify the DNA of illegitimate children,
Track down the missing dentures for the old lady, and investigate whether the internet celebrity cat hired a stand-in for the live broadcast. When they took over the investigation of the "Perfect Boyfriend" serial fraud case, they accidentally got involved in a transnational money laundering conspiracy.
Everyone used live broadcast to expose the scam, and staged the ultimate showdown in front of tens of millions of netizens. In the end, the fraud group was brought to justice, and the incident unexpectedly became popular and became the "conscience of the city". The four people also found their own life direction in the hilarious investigation.