In Master Eder's carpentry workshop, everything goes wrong. But what could be wrong? Why do the nails always pop off your desk? Why are the tools stubborn? The little prankster is none other than a goblin who will soon put the life of Master Eder on top of his head as well, and a series of hilarious adventures will begin.

The bad bone Pumukli has fascinated children around the world for almost sixty years, with a book of his adventures, a radio game and a series of films, and now he is introducing himself to new readers in a new robe.