Sun Shuang

The play tells the story of the early days of the founding of New China. The protagonists Kang Benshan and Wang Ranqiu are workers in the Changxindian Railway Factory who grew up in the bottom "mouth" and "seam" of the ancient town of Changxindian in southwest Beijing. Craftsmen, repair the most difficult machines, build the best trains

Hua Long, Su Mei, Bao Zhan and Professor Liang comprise the SIG (Special Investigation Group). This group deals with the extremely abnormal and twisted investigations of homicide cases that are difficult to crack. In the process of solving the cases, each member must face their own dangers, conspiracy and growth.

The drama takes place in republican era China in Hengshan Hospital, centered primarily on the conflict between the Communist Party and the KMT in 1930s Shanghai. Ma Tian Ming is a faithless, greedy, and selfish man who makes his living by cheating and lying. A coincidental accident drags Ma Tian Ming into a case in which he becomes the suspect. Trying to escape, he impersonated the chief doctor of Hengshan Hospital, Cai Li Kun. However, Ma Tian Ming soon found out that Cai Li Kun is a member of the underground Communist Party.