The thrilling story begins in 1318, during the reign of John of Luxembourg, when the Czech nobility rebelled against the king. However, the lord of Zlenice, Oldřich of Zlenice, did not join the resistance. He summoned the surrounding nobles to his castle for negotiations... and in the morning he was found dead. He had been murdered in his chamber, which was locked from the inside!
| Actor | Role |
|---|---|
 Petr KostkaNot listed | Not listed |
 Jaromír HanzlíkNot listed | Not listed |
 Otakar BrousekNot listed | Not listed |
 Vilém BesserNot listed | Not listed |
 Vlasta FabianováNot listed | Not listed |
 Karla ChadimováNot listed | Not listed |
 Eduard CupákNot listed | Not listed |
| VVladimír StachNot listed | Not listed |
 Ota SklenčkaNot listed | Not listed |
 Jiří NěmečekNot listed | Not listed |
 Rudolf JelínekNot listed | Not listed |
 Jiří ZahajskýNot listed | Not listed |
| JJaroslav MikulínNot listed | Not listed |
 Josef PatočkaNot listed | Not listed |
| JJosef SekeraNot listed | Not listed |
| ČČestmír VálekNot listed | Not listed |
| FFelix ČernýNot listed | Not listed |