Ryu Sung Joon, Ryu Sung Hoon and Jo Eun Ki are all involved in a quest for clues in a serial murder case linked to the jury victims. And they tried to uncover the truth behind the deaths of those victims. Ryu Sung Joon is a spy police officer who is full of enthusiasm on duty. His determination has earned him the top spot in the area, while his older brother, Ryu Sung Hoon, is a judge who adheres to the principles of perfection. He was a smart man who passed the bar exam with the highest score. He also graduated with honors and was the most outstanding in the judiciary. He does his best to judge every case with fairness and accuracy.