A historical drama about Prince Yeon-san of Joseon as a prince trying to restore the status of his mother, the deposed and executed Queen Yun.
Prince Yeonsan-gun turns into a tyrant out of grief for his mother's death. He orders beheadings of all the officials who displease him or who advised the previous king to depose the queen. He becomes crueler by the day. But in 10th year of his reign, he is kicked out of the throne and dies a tragic death.
