Postwoman Christel is engaged to detective Horst. When the dashing star trumpeter Mecky arrives in town, her love begins to waver. Christel must make a decision at the big postal parade.
| Actor | Role |
|---|---|
 Gardy GranassChristel Werner | Christel Werner |
 Hardy KrügerHorst Arndt | Horst Arndt |
 Claus BiederstaedtMecky Doppler | Mecky Doppler |
 Paul HörbigerFerdinand Brenneis | Ferdinand Brenneis |
 Gunther PhilippPoldi Blaha | Poldi Blaha |
 Carl WeryEgon Hanke | Egon Hanke |
 Carla HagenRuth Bornemann | Ruth Bornemann |
 Hannelore BollmannRita Hohenfeld | Rita Hohenfeld |
 Lotte RauschElla Lenz | Ella Lenz |
| LLudwig Manfred LommelProf. Hummel | Prof. Hummel |
 Karl HellmerPelzer | Pelzer |
 Stanislav LedinekAntonio | Antonio |
 Hilde von StolzAnni Klewinski | Anni Klewinski |
 Oscar SaboKlabuschke | Klabuschke |
| WWulf RittscherKlewinski | Klewinski |
| HHans Schwarz Jr.Franz | Franz |
 Bruno W. PantelOtto | Otto |