A Nightmare on Elm Street - Freddy Dream Master Mask & Hat - Trick or Treat StudiosA Nightmare on Elm Street Freddy Dream Master Mask & Hat Trick or Treat Studios and Warner Bros. Pictures are proud to present the officially licensed A Nightmare on Elm Street 4: The Dream Master Deluxe Freddy Krueger Mask with Fedora Hat. Based on hundreds of screen and behind the scenes photographs, this is the ultimate Freddy Krueger Mask from Wes Craven's, A Nightmare on Elm Street 4: The Dream Master. Every detail of Freddy, as played by the