Three bizarre murders occurred in Binhai City one after another, and the deceased were all suspects who could not be punished by the law. Lin Jun, deputy captain of the Criminal Investigation Detachment, discovered during the investigation that all the evidence pointed to a mysterious organization calling itself "The Judge". As the investigation deepened, Lin Jun's partner died unexpectedly and he was suspended for investigation. In the process of pursuing the truth, Lin Jun met Su Yuqing, a criminal psychology expert, and the two gradually uncovered the huge conspiracy hidden behind the case - a vigilante organization composed of the victims' family members. In the end, Lin Jun faced a difficult choice between love and law.
