Mayo and her teddy bear Mister Masper are being driven home one night, when suddenly the car's engine stops. Her father heads down a nearby path to find help, and when he doesn't return, Mayo and Masper decide to follow. There, they find a large mansion. And in the search for Mayo's father, they find much more...

Mayo and her teddy bear Mister Masper are being driven home one night, when suddenly the car's engine stops. Her father heads down a nearby path to find help, and when he doesn't return, Mayo and Masper decide to follow. There, they find a large mansion. And in the search for Mayo's father, they find much more...