Child wonder

Finn lives with his mother in an apartment block in a working-class suburb of Oslo. It is 1961, a time when 'men became boys and housewives women', the year the Berlin Wall is erected and Yuri Gagarin becomes the first man to travel into space. Life is electrical, beautiful and stubbornly social-democratic. One day a mysterious half-sister appears 'with an atom-charge in a light blue suitcase', and she turns his life upside-down.