The protagonist is a young man, a future scientist, who plans his future life with mathematical precision, but the calculation betrays him.
| Actor | Role |
|---|---|
 Dragan ZarićDušan Murtal | Dušan Murtal |
 Petar KraljEmil, drug Dušanov | Emil, drug Dušanov |
| MMirjana VukojičićAnđa Ružić, ćerka | Anđa Ružić, ćerka |
 Olivera MarkovićGospođa Ružić | Gospođa Ružić |
| KKsenija JovanovićEmilova tetka | Emilova tetka |
 Milan PuzićMirković | Mirković |
| BBogić BoškovićKapetan Ivanić | Kapetan Ivanić |
 Ljubomir ĆipranićNot listed | Not listed |
| IIvan ĐurđevićStarac | Starac |
| RRadmila ĐurđevićAnđina sestra | Anđina sestra |
 Tomanija ĐuričkoTrafikantkinja | Trafikantkinja |
| LLjiljana GazdićNot listed | Not listed |
| DDragica LukićNot listed | Not listed |
 Zlata NumanagićRadmila | Radmila |
 Vasa PantelićDušanov šef | Dušanov šef |
| DDragoljub PetrovićNot listed | Not listed |
| RRadomir PopovićKonobar | Konobar |
| BBudimir ŠarenacNot listed | Not listed |
 Vladan ŽivkovićGost u kafani | Gost u kafani |