Based on an episode "Kahdeksankulmainen portinpylväs" from the novel "Kolme" (Otava, 1969) by a Finnish author Juhani Peltonen.
The only television collaboration between director Veli-Matti Saikkonen and author Juhani Peltonen. Before that, they worked on a theatre plays "Päivän sankari" (premiere in November 6, 1968), "Jatkojen aika" (premiere in November 20, 1969) and "Suomen Leijona" (premiere in November 25, 1970) for the Finnish National Theatre (Finnish: Suomen Kansallisteatteri), and radio plays "Suuntaan nolla" (aired in August 25, 1969) and "Norjasta ostettu posliinitonttu" (aired in December 3, 1971) for Yleisradio (Yleisohjelma).