The adventurous story of a young soldier, lance corporal Milan Pazdera, who falls in love with a beautiful young girl at a party who claims to be in the countryside on medical leave. However, it turns out that she is a dangerous spy who is trying to obtain the call lists with the help of Milan, a scribe at the military camp headquarters.
| Actor | Role |
|---|---|
| EEva KubešováHelena Busková alias Irena Vágnerová | Helena Busková alias Irena Vágnerová |
 Josef VinklářMilan Pazdera | Milan Pazdera |
 Otto LackovičKarel Haluza | Karel Haluza |
 Anton MrvečkaJozo | Jozo |
 Rudolf DeylLiska | Liska |
 Bedřich ProkošColonel | Colonel |
 Vlastimil BrodskýKrejza | Krejza |
| SSvětla AmortováJahodová | Jahodová |
 Vladimír HrubýMikulícek | Mikulícek |
| EEmilie HráskáVesnicanka | Vesnicanka |
| RRudolf KřivánekCounterintelligence officer | Counterintelligence officer |
| BBohumil ŠedaVillager | Villager |
 Jan VíšekOfficer | Officer |
| JJiří Smutnýcounterintelligence officer | counterintelligence officer |
| KKarel HovorkaWaiter | Waiter |
| PPavel Šmoksoldier-dancer | soldier-dancer |
| BBohumil Smutnýsoldier | soldier |