Master carpenter Eder's workshop seems to be haunted. Things move by themselves or disappear without a trace! Only when the culprit accidentally falls into a trap does Master Eder see who is up to no good - Pumuckl! Even though the little imp is up to a lot of mischief, the old man quickly takes him to his heart. One day, however, Pumuckl lands in the Countess's castle during an excursion from the carpentry workshop. Does he go too far with his pranks here?