Korea, 1645 - Joseon Dynasty: a partially blind and gifted acupuncturist, Gyeong-su, is invited to work alongside the royal physician in the palace of King Injo, just before the crown prince Sohyeon returns after having been held captive by the Qing Dynasty. Prince Sohyeon and his father begin to differ in opinion on the future direction of their dynasty, leading King Injo to suffer from severe anxiety and paranoia. One night, Gyeong-su witnesses prince Sohyeon's death. Disbelieved as a witness on account of his blindness, Gyeong-su must struggle to reveal the truth while not falling prey to the power-hungry conspirators of the palace.
Ryu Jun-yeol
Cheon Gyeong-su
Yoo Hai-jin
King Injo
Choi Mu-sung
Lee Hyeong-ik
Cho Seong-ha
Lord Choi
Park Myung-hoon
Man-sik
Kim Sung-cheol
Crown Prince Sohyeon
Ahn Eun-jin
Consort Jo
Jo Yoon-seo
Crown Princess Kang
Lee Joo-won
Seok-cheol
Kim Yae-eun
Court Lady Seo
Jung Suk-won
Captain of the guard
Ryu Sung-hyun
Senior physician
Kim Seung-tae
Vassal 1
Shin Mun-sung
Third Royal Secretary
Ahn Seong-bong
Envoy of Qing Dynasty
