For the "Festival of good ideas" that is to take place in their residential quarter the musically enthusiastic young Bum wants to rehearse a music show along with his friends. With pans, cans, hooters and other junk they make music. Some adults get angry about that. Others like the second-hand dealer Dohlenei and Mr. Kling from the symphony orchestra help the children to make their fantastic idea come true.
as Bum
as Paule
as Plautz
as Knobel
as Herr Kling
as Frau Bolz
as Anett
as Jaecki
as Ottmar Dohlenei
as Oma Taubert
