Marta (Jana Brejchová) and Viktor (Vlastimil Brodský) celebrate the tenth anniversary of their wedding half-heartedly. They both think they don't suit together. While visiting Marta's friend Alena (Iva Janzurová), who just got married for the third time, they learn an interesting thing. It was a computer which selected a husband for Alena and she claims she is happy. The couple gets off after certain hesitation to a cybernetic institute, where the computer tells them that living together is a risk for them. At the same time the computer selects them ideal partners - Mrs Tuchlová, a doctor for Viktor, and Petr Karát, a music composer for Marta. By a coincidence Viktor and Marta meet wrong people.
Vlastimil Brodský
Jana Brejchová
Regina Rázlová
Josef Bláha
Iva Janžurová
František Peterka
Vladimír Menšík
Stella Zázvorková
Eva Jiroušková
Stanislava Bartošová
Božena Böhmová
Lucie Žulová
František Filipovský
Jiří Lír
Václav Trégl
Mirko Musil
Karel Hovorka
Darja Hajská
Jiřina Bílá
Zdeňka Balounová
Ivo Hrdina
Nina Zvjagina
Anna Štrosová
Vilemína Nejedlová-Skokanová
Renata Bauerová
Slávka Hamouzová