When the Mystery Gang meet famous horror writer Ben Ravencroft on their last mystery, he invites them to the small town Oakhaven, Massachusetts. While there for the Autumn Harvest Festival, Ben explains the history of his ancestor Sarah Ravencroft, who happens to be an evil witch. At the same time, the Hex Girls, an all-female Gothic rock band, come to town bringing an audience there. The gang investigate the mysterious sightings while they are there which seems to be connected to the locals of the town which turns into something much more.
User Reviews: I’ve seen this film about 10 times and it keeps getting better and better! I think that the new characters are way cool and for me and my mates we think the songs by the Hex Girls are super ace! It was awesome to come up with the ideas of real ghosts in the Scooby-Doo movies. It also gives you a real laugh at Shaggy and Scooby. Sarah and Ben are OK, but they could be better! The gang (Fred+the girls) are the same as usual but really cool all the same! The Hex Girls are also cool. Dusk is my favourite because I too play the drums! After watching Scooby-Doo and the witches ghost I’ve looked at the Scooby-Doo series differently just wondering if one of the monsters is actually real! All me and my friends loved it!