This feature documentary is a profile of one of the most fascinating and innovative men in popular entertainment today: Todd McFarlane. MacFarlane is a legend to legions of fans. His fictional superhero Spawn has made him the most successful comic book artist in history. He is driven, controversial, relentless in the pursuit of his dreams - yet lives a happy suburban life married to his childhood sweetheart, a level-headed beauty who helps him manage a multi-million dollar entertainment empire. The Devil You Know charts this enigmatic man and explores some of his most intimate thoughts.