Hospital orderly Rozruch, denied his therapeutic treatment, is mistaken for Dr. Marek at the insurance office and sent to a spa. Councilor Pěna, plotting to wed his mistress after his daughter Heda’s marriage, also arrives. At the spa, impostures collide, identities are exposed, and hidden motives and loyalties come to light.
| Actor | Role |
|---|---|
 Vlasta BurianKryštof Rozruch | Kryštof Rozruch |
 Jaroslav MarvanMUDr. Osvald Bruner | MUDr. Osvald Bruner |
 Ladislav HemmerSecretary | Secretary |
 Adina MandlováVera | Vera |
 Marie BlažkováVera's Mother | Vera's Mother |
 Čeněk ŠléglRichard Pěna | Richard Pěna |
| AAnna GabrielováHeda Pěnová | Heda Pěnová |
| AAntonín Streitprimář MUDr. Leon Marek | primář MUDr. Leon Marek |
| KKarel PostraneckýDoctor | Doctor |
 Václav TréglKlucek - Patient | Klucek - Patient |
| EEmanuel KovaříkPatočka | Patočka |
| AAntonín SoukupDoor-keeper | Door-keeper |
| MMarta ŠkoludováNurse | Nurse |
| VVáclav MlčkovskýSpa Gate-keeper | Spa Gate-keeper |
| VVáclav MengerVinárník | Vinárník |
 Betty KysilkováVinárníková | Vinárníková |
| FFrantišek LašekPatient | Patient |
| KKarel VeverkaPatient | Patient |
 František FilipovskýClerk | Clerk |
| KKarel NěmecAttendant | Attendant |
| JJaroslav TryznaDoctor | Doctor |
| FFerdinand JarkovskýDependant | Dependant |
| RRůžena KurelováNot listed | Not listed |
 R. A. DvorskýSinger | Singer |