Several young music enthusiasts find a helpful supporter of their passion—singing and making music—in the endearing, friendly elderly gentleman Mr. Herzlieb, who works as a night watchman at a pawnshop specializing in musical instruments. Using a shortwave transmitter, they are even able to broadcast their pop songs all the way to Brazil, after which the music lovers are offered a gig. A German "Schlager-Film" (a musical comedy with popular songs).

Giorgia Moll
Mary Miller
Jan Wennick
Jan
Bubi Scholz
Ralf Moebius
Kjeld Wennick
Kjeld

Renate Holm
Frau Renate Henkel

Rudolf Platte
Herzlieb

Trude Herr
Trude Pippes
Teddy Stauffer
Robert Miller
Silvio Francesco
Silvio

Rex Gildo
Rex
Rocco Granata
Rocco Granata

Viva Blackpool
Viva Blackpool

Dolls
Dolls

Meet Me in St. Louis
Meet Me in St. Louis

Hot Summer
Hot Summer

Aladdin
Aladdin

Moulin Rouge!
Moulin Rouge!

The Three from the Filling Station
The Three from the Filling Station

All My Friends Are Cowboys
All My Friends Are Cowboys
Black and White Sylva
Black and White Sylva

Fame
Fame

Corpse Bride
Corpse Bride

White Christmas
White Christmas