Detective Liu Shen and aspiring constable A Qing join forces to unravel a series of bizarre murders. As they uncover staged crimes and decade-old revenge plots, a mysterious killer bearing A Qing’s likeness emerges, bringing a new, imminent threat.
Fourteen players gather in a castle to compete for a grand prize by completing a series of missions. But among them hide the traitors - secretly eliminating their fellow contestants one by one. The rest are the faithful, and it's up to them to identify and banish the traitors before they become the next victims.