
Väinö Kehkonen, the head of a Helsinki-based construction company, takes his wife and the Ärmälä couple to Dr. Puosu for a rejuvenating hormone injection, which causes them to behave like children. The director, previously known for his lack of drive, gains energy and enthusiasm from the injection, both in his business and personal life.

as johtaja Vänski Kehkonen

as Helena Kehkonen

as johtaja Aukusti Ärmälä

as Liisa Ärmälä

as tohtori Leander Tiburtus Puosu

as Pena

as johtaja Antero Koro

as konttoripäällikkö Kivi

as konstaapeli Jeparinen

as konekirjoittajatar

as äiti

as 1. tyttö

as naisten lähetystön jäsen

as nuori mies

as etsivä Pahkanen

as Köösti

as eukko

as opettaja