Doctor John is a medical drama that dives into the world of pain management, treating the search for the cause of mysterious pain like solving a thrilling detective case.

Cha Yo Han, a brilliant anesthesiologist and the youngest professor at his hospital, is nicknamed “10 Seconds” for his uncanny ability to diagnose patients almost instantly. Kang Shi Young, also a skilled anesthesiologist, was always top of her class. She inherits her calm, logical approach from her mother and her empathy and warmth from her father. Together, they explore the complexities of pain—both physical and emotional—as they uncover the truth behind each patient’s suffering.