"Monster High: Ghouls Rule!" is an electrifying animated adventure that takes a fresh spin on Halloween traditions. For years, Monster High students were warned to stay indoors, but Frankie and her friends uncover a hidden history of ghouls and "Normies" coming together in the spirit of fun and self-expression. The film's vibrant 3D animation brings this alternate universe to life as the ghouls reclaim their right to celebrate individuality and unapologetic monstrosity, with Frankie and her friends leading the charge.