Scooby-Doo! Music of the Vampire

With the Cockroach Monster mystery solved, the Mystery Gang decides to take a well-deserved vacation. They pile into the Mystery Machine and head toward Louisiana for a break from mysteries. Velma drives them to Petit Chauve Sourie Ville to attend Vampire Palooza, hoping for a fun, sunny distraction.

The gang arrives in Petit Chauve Sourie Ville for the vampire festival and meets festival organizer Lita Rutland, who explains that tourism is down and funds are dwindling. They also encounter Vincent Van Helsing, a vampire museum owner and author whose books aren’t selling. The stage is set for a publicity-driven weekend.

At the festival theatre, the troupe pledges lifelong devotion to the vampire lifestyle and promises a dramatic performance. Bram announces a resurrection ritual, and the group unexpectedly brings back Valdroyna on stage, who then takes flight. The audience reacts with astonishment as the illusion turns real.

Back at the vampire museum, the bridal jewelry and the body behind Valdroyna vanish, while the tomb remains sealed. The team senses a staged mystery and begins to suspect foul play beyond a simple publicity stunt. Clues point toward a real, manipulated ritual rather than a purely theatrical one.

Lita Rutland pushes a phony attack story to exploit the vampire angle for publicity. Separately, Jesper Poubelle gains media exposure as he campaigns to become mayor, using the vampire spectacle to boost his anti-vampire platform. The festival buzz serves multiple agendas beyond entertainment.

On the return trip, Valdroyna clings to the top of the Mystery Machine and slips inside through the skylight. Daphne tears a piece of fabric from his sleeve in a hurry, and Velma uses a low tunnel to shake him off the van. The chase underscores that the monster’s threats are more than mere theater.

That evening, Shaggy and Scooby are chased into the swamp by Valdroyna, and Shaggy worries he’s been bitten. There they meet Tulsa, the hover-shoe inventor, who reveals his designs were stolen by vampires and forced into hiding. The swamp becomes a crossroads of mystery and technology.

Fred, Daphne, and Velma discover Valdroyna’s clothing is made from modern fabric, while Van Helsing insists the original material would have disintegrated. Daphne questions Bram, and he retaliates by abducting her to present her as the bride to Valdroyna. The trap tightens as the plan moves toward a wedding.

Daphne alerts Fred, and the team journeys into the swamp to rescue her. Van Helsing is pulled from a ship and disappears, while Fred and Velma later find Shaggy and Scooby and confirm Daphne’s danger. Velma also reassures Shaggy that he hasn’t turned into a vampire.

The troupe ties Daphne's hands between two trees and outfits her for the wedding, hoping to claim immortality for the bride. The plan hinges on the vampire’s ceremony, which would seal their fates as long as Valdroyna remains free. The gang prepares to intervene before the ritual can begin.

Shaggy and Scooby create a distraction with Fred and Velma’s help as Valdroyna approaches Daphne. An airboat propeller whirs into action, blowing away the vampire’s disguise to reveal modern clothes and hover boots beneath. The interruption disrupts the marriage plan just in time.

Valdroyna is unmasked as Vincent Van Helsing, who staged the wedding to launch a new vampire-tourism attraction. He exploited stolen books, knockout gas, and holographic projections to conjure a monster spectacle. The hands dragging him away were a pre-programmed machine, not a real monster.

The sheriff arrests Van Helsing and the troupe’s actors for their roles in the hoax. Bram apologizes to Daphne, who remains cool and rejects his attempt at dating him, noting she never dates actors. The town begins to see the financial consequences of the sham spectacle.

With the mystery resolved and the community set to face the fallout, the Mystery Gang leaves town in search of another vacation. They hope next time to avoid any more monsters or misdirection and simply enjoy a trouble-free trip.