Barbie is living her dream, designing outfits for a rock star's big tour! Everything's going great…until opening night of the show, when she arrives to discover that all of her designs have been destroyed. Is someone trying to get between her and her dreams, before they can even get off the ground? Barbie must don her most fashionable trench coat and jump into detective mode to navigate the glamorous, thrilling backstage world of fashion, music, and celebrity, before the curtain goes up and the show goes on-with or without her show-stopping designs.