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.
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.
A gang of unemployed itinerant musicians play in the south of Stockholm. Then they get the chance to be an orchestra in a dance restaurant. It goes well until the female owner falls in love with one of them.
