Small-time criminal Niilo gets the chance of a lifetime when the wealthy Sahlbergs mistake him for their long-lost nephew. Taking on the role of Yrjö Sahlberg, Niilo becomes the manager of a safe factory, where his old partner in crime, Oksa, begins to blackmail him into shady dealings. After falling in love with his "cousin" Annikki, Niilo wants to face his past and start a new life as an honest man.
Ansa Ikonen
as Annikki Aho
Unto Salminen
as Niilo Nurmi
Aku Korhonen
as Kalle Karlsson
Siiri Angerkoski
as Tekla
Anni Hämäläinen
as Mrs. Sahlberg
Ossi Elstelä
as Einari Oksa
Hugo Hytönen
as Koskinen
Verna Piponius
as Julia Modin
Yrjö Tuominen
as Kapperi
Eero Eloranta
as Penttinen