Ragnarok and Roll

Abandoned by his girlfriend Cindy, a lonely man named Jeremy and his hunchback-like friend, DyTillio, sets loose the forces of evil as he uses a magical flute to bring about the end of the world in Norse Mythology. However, DyTillio and Jeremy's ex-girlfriend, manage to convince him to undo his destruction, which the evil force that Jeremy contracted with refuses to allow, and nearly kills him. The Ghostbusters are able to push the spirit back into his dark realm after Jeremy weakens it, and help Jeremy to reverse the damage he's done to the world, by using their own energies to repair the damaged flute.