Dan falls asleep watching a horror film called HP Massacre and awakens to find himself trapped inside the film. He encounters characters Christopher and Cindy who are confused by Dan's knowledge of events. Dan uses his familiarity with the film to help Christopher and Cindy escape the killer Victor Hemz. After a few close encounters, Dan's plan works and he helps defeat Victor. Christopher and Cindy thank Dan for his help before Dan returns to his classroom, only to find the sequel's title card implying his ordeal may not be over.