Katariina, an orphaned girl from the north, travels to Helsinki to live with her distant relative Mauri, who has been appointed her guardian. The unpretentious child of nature irritates, amuses, and charms Mauri, who is accustomed to high society, and his bachelor friends.

Helena Kara
as Katariina Malmi

Tauno Majuri
as Mauri Teräs

Hugo Hytönen
as Dr. Olli Parmas

Kullervo Kalske
as Klaus von Bartel

Ville Salminen
as Osmo Neva

Aino Lohikoski
as Mrs. Simola

Britta Wikström
as Helena Suokorpi

Verna Piponius
as Verna

Irja Haapanen
as Elsa

Irja Elstelä
as Maija Taipale