The document provides an analysis of the 1984 horror film "A Nightmare on Elm Street". It summarizes the plot, which involves teenagers in Springwood, Ohio being stalked and killed in their dreams by Freddy Krueger. The document then analyzes some of the codes and conventions used in the film to create atmosphere and tension, such as the use of shadowy and dark imagery, creepy musical cues, and settings that play on common fears. Specific scenes are described to show how lighting, settings, and the victimization of female protagonists further convey the intended horror elements.