The famous rock band “Kiss”, based on the cartoon “Scooby-Doo and KISS: The Secret of Rock and Roll”, is hosting a grand concert on the eve of Halloween. Fans are already anticipating what a colossal view awaits them. But none of them even suspects what secrets everyone will encounter who is going to enjoy the music of their idols. The mysterious Red Witch appears from nowhere, trying not only to disrupt the holiday in the park, but also to completely destroy the entire planet. She is already calling from a parallel world her faithful helper, who will complete the destruction.
Fans of all kinds of mysterious puzzles - the friendly team of the mystery detective agency “Mystery” - find themselves in the very center of incredible events for a reason. Funny brown dog and his friends are ready to go to meet the dangers at the first call. And such a case of being close to your favorite musicians like this one, neither Shaggy, nor Velma, nor Daphne and Fred will miss. An incredibly complex investigation before them this time. Children will need not only their ingenuity and endurance, but also the help of famous artists - members of the group, ready for the performance. Only together they can solve the mystery that the red fog hides. And the Scooby-Doo team, as always, will be on top!