A mail truck is robbed near the small town of Kostelec, during which the perpetrators steal CZK 2.5 million. The local police fail to solve the case. After some time, a young and capable lieutenant Charvát arrives from the Prague CID. While he is getting acquainted with the circumstances of the case and the evidence found, he makes friends with the handsome Květa, the daughter of the hostel manager Weisse. The complicated relationship that develops between the two lovers is in no way comparable to the complexity of the criminal case that brought Charvat to Kostelec. Things get even more complicated when someone murders Malásek, a local brawler and drunkard, with a shotgun. He is actually Květa's husband. And his death, according to Charvat, is connected to the mail robbery...
| Actor | Role |
|---|---|
 Jaroslav SatoranskýCharvát | Charvát |
 Zuzana CigánováKvěta | Květa |
 Rudolf HrušínskýWeiss | Weiss |
 Dušan BlaškovičSitenský | Sitenský |
 Zdeněk ŘehořTrčka | Trčka |
 Milan StehlíkUlrych | Ulrych |
 Bohumil ŠmídaVítek | Vítek |
| MMarcela MartínkováČurdová | Čurdová |
 René PřibilMalásek | Malásek |
 Bronislav PoloczekZahn | Zahn |
 Lubomír KostelkaKrejza | Krejza |
| VViktor MaurerBlahoš | Blahoš |
 Karel AugustaNot listed | Not listed |
| OOtto BudínNot listed | Not listed |
| MMiroslav NohýnekNot listed | Not listed |
| MMilan RiehsNot listed | Not listed |
 Karel UrbánekNot listed | Not listed |
| JJan CmíralNot listed | Not listed |
| ZZdeněk KopalNot listed | Not listed |
| JJan KotvaNot listed | Not listed |
 Marek EbenNot listed | Not listed |
| JJiří FlíčekNot listed | Not listed |
| ZZdeněk HessNot listed | Not listed |
| MMiloslav ŠindlerNot listed | Not listed |
 Petr JáklNot listed | Not listed |
| MMiroslav PešanPolice Photgrapher | Police Photgrapher |
| VVladimír PospíšilNot listed | Not listed |
| BBohumír ProcházkaNot listed | Not listed |
| MMiloslav SvobodaNot listed | Not listed |
| VVáclav SyřištěNot listed | Not listed |