A rich widow is found dead in her apartment in Helsinki due to gas poisoning. The incident is initially thought to be an accident, but inspector Palmu notices that the murderer made a mistake, and so Palmu, Kokki and Virta begin the investigation: who had come to the apartment through the balcony door and opened the gas tap while Mrs. Skrof was asleep?
as Palmu
as Toivo Virta
as Väinö Kokki
as Kirsti Skrof
as Kurt Kuurna
as Kaarlo Lankela
as Mustapää
as Alma Skrof
as Iiri Salmia
as Lanne
as Doctor
as Hallamaa
as Anna
as Ara
as Hakanen
as Janitor's Wife
as Janitor
as Leppä
as Vesa
as Pihlaja
as Pentti Lanne
as Cleaner
as Postman
as Homicide Detective
as Homicide Detective
as Waitress
as Butler
as Drunk
as Police Officer
as Young Man in Metropol
as Mrs. Lanne
as Domestic Worker
as Homicide Detective (uncredited)
as Young Kirsti Skrof (uncredited)
as Postal Worker (uncredited)
as Young Woman in Metropol (uncredited)
as Man Holding Kuurna (uncredited)
as Dancer (uncredited)
as Man in Lineup (uncredited)
