Radio reporter Toivo Teräsvuori gets an idea for an experimental report using a hidden microphone, but he is reported as a madman talking to himself and is taken to the Houruniemi mental hospital. At the hospital, the volatile Toivo is considered insane, and even his wife Eila's testimony does not help the matter. Instead, Professor Piukka orders Toivo to undergo brain surgery.
| Actor | Role |
|---|---|
 Hannes HäyrinenToivo Teräsvuori | Toivo Teräsvuori |
 Ritva ArveloEila Teräsvuori | Eila Teräsvuori |
 Uljas KandolinSalomon Tillikka | Salomon Tillikka |
 Kaarlo HalttunenLeo Laakso | Leo Laakso |
 Arvo LehesmaaPiukka | Piukka |
 Unto SalminenDr. Kirves | Dr. Kirves |
| YYrjö IkonenRanta | Ranta |
 Heikki SavolainenPuputti | Puputti |
 Oiva SalaNot listed | Not listed |
| SSakari PuurunenDr. Puukko | Dr. Puukko |
| SSeppo SariolaNot listed | Not listed |
 Leo RiuttuNappinen | Nappinen |
 Tyyne HaarlaNot listed | Not listed |
 Rauha RentolaNot listed | Not listed |
 Kaarlo WilskaNot listed | Not listed |
 Artturi LaaksoNot listed | Not listed |
 Rauni LuomaNot listed | Not listed |
| AAino MantsasNot listed | Not listed |
| UUrho SeppäläNot listed | Not listed |
 Kaarlo SaarnioNot listed | Not listed |
| KKauko KokkonenNot listed | Not listed |
| VVarma LahtinenNot listed | Not listed |
| TTeijo JoutselaNot listed | Not listed |
| EElis AskElis Ask | Elis Ask |