The story takes place in Shanghai in the 1920s. Tang Lang (played by Huo Jianhua) has always been impartial in handling cases, so he offended the top. He had to leave the police station and start a detective agency alone, practicing the conscience and justice that a detective should have. Gangster leader Du Bailong (played by Kaohsiung) escapes from prison after being sentenced to life imprisonment, vowing to take down everything
The story takes place in Shanghai in the 1920s. Tang Lang (played by Huo Jianhua) has always been impartial in handling cases, so he offended the top. He had to leave the police station and start a detective agency alone, practicing the conscience and justice that a detective should have. Gangster leader Du Bailong (played by Kaohsiung) escapes from prison after being sentenced to life imprisonment, vowing to take down everything