Sven Bergström is charged with murder, alternatively a man slaughter, on an infamous professional poker player called "The Rover". The trial is in progress. In retrospect, we witness Svens life until the time of the crime.
Naima Wifstrand, leading old lady, dressed as a Primadonna presents the variety revue "The Old, Happy 40's", a dark time of angst, depression and derailed, wild happiness. Those were the days. Music, dance, songs and hillarious sketches follow.
Kristina and Sture is married and has a little baby boy, Olle. Sture is an architect and while he is struggling with his business, his wife Kristina gets lonesome and starts to get take an interest in Sture's Norwegian architect colleague, Arne Ranck.