
"The crown prince is dead. The only witness is a blind man."
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.
Cheon Gyeong-su

King Injo

Lee Hyeong-ik

Lord Choi

Man-sik

Crown Prince Sohyeon

Consort Jo

Crown Princess Kang

Seok-cheol

Court Lady Seo

Captain of the guard

Senior physician

Vassal 1

Third Royal Secretary

Envoy of Qing Dynasty

Vassal 2
Court Lady Choi
Gyeong-jae

Physician 1

Eunuch

Herbal Shop Merchant

Doctor

General

Court Lady

Eunuch

Lawmaker 3

Prince Soong-seon

Eunuch