Lee In-suk

A middle-aged man is so crazy about his mistress that he doesn't care about what happens to his family. The feud between his children by his wife and by the mistress gets worse until the family almost breaks apart.

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.