The court system is corrupted and old-fashioned. People desire a new system that can satisfy the crowds. However, are the crowds always correct? The drama shows how judges discover the truth about people in court. It centers around a chief judge who doesn’t believe in justice, but only makes judgements that the crowds will be satisfied with. An assistant judge starts to question his motives and tries to find the truth.
In a dystopian Korea where society has collapsed and distrust in leaders runs deep, Head Trial Judge Kang, known as the "Devil Judge," runs a brutal courtroom reality show, punishing the guilty with ruthless precision. His mysterious persona divides public opinion—some view him as a hero, while others suspect his true intentions. A bitter rivalry ensues between the "Devil Judge" and the ambitious Jung Sun Ah, a corporate foundation director. Amidst this chaos, two childhood friends, rookie Judge Kim Ga On and Police Officer Yoon Soo Hyun, strive for true justice, challenging both the scheming Jung Sun Ah and the notorious Kang.