Season 1, Episode Number 1 (Episode 1)
Released: 2016-07-27
Runtime: 24 minutes
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.
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