Adalbert "Mussu" Koikkalainen inherits 9,000 marks from his uncle. To buy a milk shop, Koikkalainen needs another thousand marks and work experience, so he applies for a job at the department store Sampo, where he is hired as a scapegoat to receive customer complaints. The saleswoman Irja Salo, who is under threat of dismissal, falls in love with the general manager Vaara, whom she thinks is a traveling salesman.

Ester Toivonen
as Irja Salo

Kaarlo Kartio
as Frans Esko Ylermi Adalbert Koikkalainen

Jaakko Korhonen
as Vaara

Tyyne Jauri
as Mrs. Aro

Aku Käyhkö
as Aro

Tyyne Haarla
as Mrs. Ilola

Kaija Suonio
as Mrs. Koikkalainen

Heikki Välisalmi
as Miettinen

Iivari Kainulainen
as (uncredited)

Eija Hiltunen
as (uncredited)