The Mucklas…and How They Came to Pettson and Findus.
Original title: Die Mucklas und wie sie zu Pettersson und Findus kamen
German title: Die Mucklas und wie sie zu Pettersson und Findus kamen
They love disorder and chaos: the little Mucklas. That's why mister Hansson's stuff shop is just right for them. But then the shop is rented to the exterminator Karl, a real Mister Clean. So, the Mucklas are in great danger and have to find a new home.