Barta has been investigating for a year in the murder case of a professor of medicine. Keller, the victim, has been shot dead in his own villa. Barta joins the closest relatives and they all travel to Dunaszentmárton by ship for the inaugural ceremony of his tomb.
| Actor | Role |
|---|---|
| GGyörgy KálmánBarta György | Barta György |
 Mari TörőcsikKoller Éva | Koller Éva |
 Antal PágerPukner professzor | Pukner professzor |
 Zoltán LatinovitsDr. Bán | Dr. Bán |
 Éva RuttkaiZizi | Zizi |
 László InkeZorg | Zorg |
 Gyula BodrogiCzakó Péter | Czakó Péter |
 Ferenc KállaiZizi férje | Zizi férje |
 Andrea DrahotaDóra | Dóra |
 Margit MakayRadics Olga | Radics Olga |
 Hilda GobbiTóthné | Tóthné |
 Sándor Pécsihajóskapitány | hajóskapitány |
 János MakláryTóth | Tóth |