The peaceful city of Luzhou is shaken by a series of so-called justice-driven murders. To crack the case, authorities form the 909 Task Force, which works tirelessly to unravel the layers of the chilling exchange-killing revenge scheme.

• Niu Junfeng
• Jia Yi
• Dong Yong
• Su Qianwei
• Su Yujie
• Lu Yiding
• Lu Shan
• Chen Yizhen