Iris Klewe is brought from her forest cottage by her bank-manager uncle Kaarlo Heinonen to attend school in Helsinki, where his wife and elder children resent the poor foster girl while only the youngest child and the cook show her kindness. Kaarlo’s financial troubles start to threaten Iris’s inheritance.

The municipal council of Pinsiö tries to get Taavetti, the 'baron of Pinsiö', to move into a retirement home. However, the baron refuses and flees to Tampere to stay with his nephew Heikki and his wife Liisa. Heikki and his family dream of building their own house, but obtaining a mortgage loan is difficult. Their financial worries deepen when Heikki, as a union representative, has to deal with a strike at his workplace and illegal work practices.