Lissie is a pickpocket who escapes from the police by pretending to be the wife of the absent-minded Leopold. Leopold falls in love with the young woman, but Lissie is more interested in the valuables she finds in the wealthy professor's apartment.

Pentti Siimes
Leopold Tisdall

Elina Pohjanpää
Lissie

Armas Jokio
Kaaleppi
Helmi Lehosti
Madame Tisdall

Kullervo Kalske
Kasimir

Heikki Savolainen
Jakob

Walentin Chorell
Walentin Chorell (uncredited)
Pentti Unho
Pentti Unho (uncredited)
Olavi Tuomi
Olavi Tuomi (uncredited)
Toivo Kärki
Toivo Kärki (uncredited)
Björn Korander
Björn Korander (uncredited)
Aarre Koivisto
Aarre Koivisto (uncredited)
Fanny Cederberg
Fanny Cederberg (uncredited)
Pentti Taivainen
Pentti Taivainen (uncredited)
Leena Valkeala
Leena Valkeala (uncredited)