When Inga Brantemo goes on a business trip to Italy, her husband Bertil gets romantically involved with Christina Lovén, whose father is a book publisher. When Inga returns, Bertil has a difficult time trying to explain who the woman the neighbors saw in the Brantemo home was. Bertil is an author and it doesn't get easier when he and his wife gets invited to Christina's father to talk business.

Eva Henning
as Inga

Hasse Ekman
as Bertil

Sonja Wigert
as Chris

Lauritz Falk
as Direktör Berger

Olof Winnerstrand
as Bokförläggare Lovén

Gunnar Björnstrand
as 40-talisten

Katie Rolfsen
as

Douglas Håge
as

Margit Andelius
as

Ulla Andreasson
as