A Nightmare on Elm Street 4: The Dream Master is a 1988 American slasher fantasy film and the fourth film in the Nightmare on Elm Street series. The film was directed by Renny Harlin, stars Robert Englund, Lisa Wilcox and Danny Hassel. It is the sequel to A Nightmare on Elm Street 3: Dream Warriors and is followed by A Nightmare on Elm Street 5: The Dream Child.