"Doctor John" is a medical drama centered on pain management specialists. It offers a unique perspective, treating the doctors' quest for the source of their patients' enigmatic pain as an exhilarating pursuit, akin to a detective unraveling an unsolved mystery.
Cha Yo Han, a prodigious anesthesiologist and the youngest professor at his medical institution, is known as "10 Seconds" due to his remarkable ability to diagnose patients within the first 10 seconds