Karla Kersten

Jürgen Fohrmann works as a hauer underground. In the course of the coal crisis, his mine closes - he loses the work. In this mood, his wife's prosperity thinking gets on his nerves - his marriage threatens to break. The dismissed coal buddy applys, first becomes an auxiliary worker, but then receives a job in an automated operation of the electrical industry and believes to have socially risen through this "clean work". Fohrmann quickly realizes that wearing a "white coat" is only seemingly better than the arduous work in the pit and understands that he can no longer stay out of the work struggles of the buddies.

GDR border guard Gunter Rist is a young man from humble homes. During a swimming competition he meets Penny, a professor’s daughter from a good family, and they fall in love. However, their different social backgrounds get in the way of their happiness: Penny’s friends make it obvious that they are not willing to accept Gunter in their group. Although Penny takes Gunter’s side, she doubts if love can overcome all obstacles. In this state, she falls for the advances of her ex-boyfriend Bob and joins him on vacation. In the meantime, Gunter has an accident and is hospitalized. In the hospital, he meets the nurse Li who seems to be perfect for him.

Mauritius Halbermann, nicknamed "Mauts", works as an advertising manager for Gravo-Druck, a state-owned print company. Mauts, a man obsessed with his work, incessantly percolates with marvelous ideas - and now that he has once again come up with another brilliant idea, he naturally wants to present his proposal to his boss. As it happens, his supervisor along with his entire family and some of Mauts's colleagues - including Lore who Mauts secretly fancies - have gone on a holiday trip.

After Elmers, the head of the publishing house, is reported missing, his son-in-law Jürgen Brandt is targeted by the Hamburg criminal police. Inspector Graumann and his assistant Weber presume murder. The suspicion against editor-in-chief Brandt is confirmed by the fact that he is incriminated by the testimony of several witnesses. At a press conference, Brandt claims that the Elmers murder case was staged only to exonerate the innocently convicted family man, Parsetti. But to Brandt's horror, Elmer's body is actually found.