M. Shawn Crahan, better known as Clown, is the creative mastermind behind the globally-recognised heavy metal band, Slipknot. The band are infamous for their chaotic, aggressive performances in band uniform and uniquely disturbing masks. The Apocalyptic Nightmare Journey enters this twisted and macabre world of the band through Crahan's own photography and artwork. The Apocalyptic Nightmare Journey explores the dark, magical mind of the man who has overseen this unique circus.