Dean Martin had a laid-back charm that made him successful in everything from big-screen comedies to television variety shows to live acts in Las Vegas. Filmmaker Tom Donahue explores Martin�s varied career, including his complicated relationships with Jerry Lewis, Frank Sinatra, Sammy Davis Jr, and others. We hear from admirers such as critic Gerald Early, actor Jon Hamm, and Hip-Hop artist RZA who testify to Martin�s enduring mystique.