With a success rate of operation at 97%, the surgeon Boo Yong-joo is extolled as the Hand of God. He rises to fame due to his extraordinary talent and working ability. What’s more, he earns the appellation “Teacher Kim”. He used to have a good deal of money and a great reputation. But without a reason, he suddenly disappears from the medical community and then lives in seclusion in Seok Won Hospital, a rough hospital in the countryside. This is where he meets Kang Dong-joo and Yoon Seo-jung, who come to this hospital for individual reasons, and becomes their teacher.