Overview

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.

Cast

Hans Zhang

Hua Long

Eric Tsang Chi-Wai

Liang Shu Ye

Jim Yu

Bao Zhan

Zhang Yamei

Su Mei

Dai Tingrui

[Professor Liang's assistant]

Zhang Haocheng

Mai Xi

Sun Shuang

Zhong Xian

Fu Jun

Cheng Yi

Wang Xuan

Zhao Qian Qian

Gao Yuan

San Chui

Cao Lei

Ma Liu