The drama tells the story of the top doctors in Korea who are involved in the investigation of an unexplained death in order to find out the truth. It is the first TV drama in Korea about forensic medicine and has attracted much attention. Ryu Deok-hwan will play a neurosurgeon in the drama. As the top neurosurgeon in Korea, he is a freak who is arrogant and fearless despite his supreme strength. Although he is often regarded as arrogant, he is a genius with strength and sense of humor, which makes it impossible to dislike him.