At the turn of the 10th and 11th centuries Boleslav's kingdom fell apart in the fratricidal war between the Přemyslovci and the other clans the main profiteer of this being the German emperor. At that time it seemed as if the Czech state and the lineage of its princes was awaiting its end..." It is with these words that the tale of this film begins, whose narrative is based upon the the play by František Hrubín of the same name.

A poor couple waits in vain for a child. The desperate man asks hell itself for help, and the devils grant his wish. Nine months later, the couple gives birth to a son named Nesyta. When he grows up, he sets out into the world. He is not afraid of work and offers help wherever he can, but he discourages everyone with his insatiability. Eventually, he enters the service of the devil himself...

In an effort to secure his new family, an insurance agent undertakes an effective raid on clients, unaware that elsewhere, a scam is being hatched against him, and apparently not just one. The speed with which problems begin to pile up relentlessly rises vertiginously, and the fall becomes uncontrollable.

A directors autobiography about his debut during the rise of socialism.