Scooby-Doo Meets the Boo Brothers

The name of this movie is Scooby-Doo Meets the Boo Brothers released in 1987-10-18 and it's main theme is When Shaggy inherits an old Southern estate from an uncle, he and his sleuthing hounds take a road trip. But they don't even make it to the mansion before the haunting starts. Amid headless horsemen, walking skeletons, and a menacing butler, Scooby, Scrappy, and Shaggy get majorly spooked..