A Joseon-era medical practitioner, Royal Physician Choi Won, is caught in a plot to poison King Injong while struggling to save his daughter, Choi Rang, from a terminal illness. With his wife deceased, Choi Won raises his daughter alone and becomes a fugitive. Nurse Hong Da In, in love with him, tries to help. Meanwhile, Euigeumbu detective Lee Jung Hwan pursues him with the aid of bandit’s daughter So Baek. Suspicious Crown
