Young inventor Janne is lonely. He falls in love with beautiful girls, but his feelings are not reciprocated. Heartbreak and failure rob Janne of his will to live.
| Actor | Role |
|---|---|
 Hannes HäyrinenJanne 'Jean' Kelo | Janne 'Jean' Kelo |
 Mervi JärventausNot listed | Not listed |
 Laila JokimoNot listed | Not listed |
| KKyllikki ForssellLeni | Leni |
 Toini VartiainenRaikku Rovio | Raikku Rovio |
| LLiisa PeitsaloPaula | Paula |
 Regina KesoUntuvainen | Untuvainen |
 Yrjö TuominenNot listed | Not listed |
 Thure BahneNot listed | Not listed |
| AAarne SalonenNot listed | Not listed |
| TTeijo JoutselaBöna | Böna |
 Olavi VirtaKlaus | Klaus |
 Veikko LinnaNot listed | Not listed |
| AAino MattilaNot listed | Not listed |
 Uuno MontonenNot listed | Not listed |
| MMaija-Leena ErvastiMaija (uncredited) | Maija (uncredited) |
| AAino Angerkoski(uncredited) | (uncredited) |
 Veikko Itkonen(uncredited) | (uncredited) |
| RRisto Veste(uncredited) | (uncredited) |
| SSimo Osa(uncredited) | (uncredited) |
 Ossi Elstelä(uncredited) | (uncredited) |
| OOnni Korhonen(uncredited) | (uncredited) |
 Sven Relander(uncredited) | (uncredited) |
| MMatti Jurva(uncredited) | (uncredited) |
| AArvo Kuusla(uncredited) | (uncredited) |