The protagonist (Rudolf Hrusinsky) is a dull, fat, shy government clerk indulging in voyuerism and ego fantasies. In love with another clerk (Kveta Fiolova), he is urged on in his pursuit by a commiserate executive. The story is told in a flashback sequence as the cuckolded Hrusinsky attempts suicide by gassing himself in his bathtub. The "Murder" of the title is not a murder as such, rather the murder that Hrusinsky remembers planning upon discovering his wife's unfaithfulness with his supposed friend and advisor. Both plots failing in his mind, he loses himself in fantastic reveries of his funeral and of hypocritical mourners. ' Deciding (perhaps) that this is not the way out either, he gives up the attempt and imagines a life of reconciliation and eventual affluence.
Tram driver Marie has far too much to do after her shift is over. But she likes to do it all since she loves her husband Václav sincerely. One day she spots him on the Lesser Town Square in Prague, kissing an attractive blonde good-bye. It seems to Marie that her small comfortable world has collapsed and she walks out of the tram in tears. But her sadness does not last long. She wipes off the tears and begins to act. She withdraws all the money from their savings books and buys off all the latest models from the Fashion Works. The visit to the beauty salon then completes her transformation into a lady.