Ach, du fröhliche.

It was supposed to be a cozy Christmas evening with the family. Labor Director Walter Lörke was particularly looking forward to it. But then his daughter Anne surprised him with her future son-in-law Thomas Ostermann. And that's not all: Lörke is to become a grandfather. This doesn't suit him at all, especially as the young man clearly shows his critical attitude towards the state whose ideals Lörke has fought for all his life. An argument ensues - on Christmas Eve. Lörke leaves the apartment in a rage. But he is driven by unrest: He wants to know what kind of person his future son-in-law is and why he has such a negative attitude towards the state. It turns out that Thomas has had bitter experiences with the opportunistic attitudes of many adults and that, although he was the best student in his class, he was not admitted to university because of his critical opinions.