Goosebumps The Musical Phantom of the Auditorium follows a group of friends at Woods Mill High School who find themselves caught up in a spooky and mysterious adventure. As they prepare for their school show, The Phantom, they uncover a haunting legend and start to encounter strange occurrences. With the appearance of the Phantom and the discovery of a hidden sub-basement, they must unravel the truth behind the mysteries and save the production.