It's Gretel's birthday. Not only Kasper, but all his friends prepare surprises. The devil causes confusion as he tries to steal Kasper's book of inventions.
Hans-Ulrich WiemerDirector
Kasper (voice)
Gretel (voice)
Grandma (voice)
Devil (voice)
Devil's Grandma (voice)
Mayor (voice)
Grandpa Kunz (voice)
(voice)
