In the Vienna of the Biedermeier era, the young Carl makes a delicate wager with two officers: If he does not succeed in presenting a new romantic adventure by the next day, he has to treat the soldiers to ten bottles of sparkling wine. Albeit he tries in vain to seduce the pretty maid Franzi, Carl brags about his alleged conquest the next day in his favourite pub. When the senior lieutenant Steph...

Head waiter Leopold has been secretly in love with the hostess Josepha for a long time, but she only has eyes for Dr. Siedler, a guest in the White Horse Inn. Leopold tries to get Dr. Siedler interested in the daughter of Industrialist Giesecke, who would rather see his daughter married to Sigismund.

Blonde goddess Marika Rökk plays Julia Koster, a ravishing red-headed musical revue star and her opening number, "At Night It Isn't Right To Be Alone", playing to a packed theater, is both an eye-popper and a jaw-dropper.

With rumbling stomachs and no engagement, musicians Pit, Max, Bill, Gus, Eddi, and Giorgio are on their way to visit their Uncle Hermann, who runs a sports school on Lake Wörthersee. Along the way, they meet the charming teenagers Susi, Evi, Sieglinde, Inez, and Francis, who are on their way to a girls' boarding school. A strict boarding school where male visits are, of course, frowned upon. So th...