The series "Doctor E-Han" is a Korean drama about a talented doctor who finds himself in prison. Cha E-Han is a brilliant anesthesiologist who agrees to perform euthanasia on a terminally ill patient. However, this act of mercy is considered murder in the eyes of the law, so the hero ends up behind bars. But even there, he tries to use his innate healing abilities to help other inmates cope with their illnesses. Upon his early release, he continues to work as a prison doctor.