World ex. Slowenia, ChinaOn the roof of the house crooked street 7 two birches magically grow from a piece of moss. And as something is already there, almost by itself more comes: slowly a real roof garden emerges. Henne, a roofer who has a screw loose, and Henrike, a twelve-year-old girl, drag earth, bring plants, nourish and cherish the small piece of green. They are supported by two chimney sweeps, a mysterious giant with an iron hand, a rooftop walker, Henrike’s teacher and all sorts of mystic forces. Duck Ilse builds a nest and hatches her chicks. Everything seems peaceful, but appearances are deceptive – in the background Mrs Hux tries to chase away the people from the roof and to re-establish order. She nearly succeeds – but where many good forces cooperate, malice has no power.