The Bonneville Hotel is the best kept secret in Mayfair: its art deco suites and glittering ballrooms a former home-away-from-home for royalty and film stars alike. Recent years haven't been kind, but thanks to Events Manager Rosie, the Bonneville is reclaiming some of its old cachet as a chic retro-glam wedding venue. While Rosie's weddings are the ultimate in romance, Rosie herself isn't; she's focused on the details, not the dramas. But when the hotel owner appoints his eccentric son Joe to the Bonneville staff, Rosie finds herself up against an unprecedented challenge: a rival whose predilection for the unconventional could derail not only Rosie's own career, but the most elaborate, high-profile wedding the Bonneville has ever seen.