Set during the seizure of the throne by Sejo of Joseon in the year 1455, the movie follows the life of Nae-Kyung. Nae-Kyung, the son of a ruined noble family, goes all around Joseon and studies physiognomy. He is able to assess the personality, mental state and habits of a person by looking at someone's face. Because of his abilities, he gets involved in a power struggle between Prince Sooyang and Kim Jong-Seo.