The Unknown Guest

Mathilde Kratzer owns the entertainment venue "Bei Mathilde" (At Mathilde's). Her roommate Max also has a financial stake in the establishment, but only as a silent partner, which is why he works either as Mathilde's servant or as the bouncer. He would love to rename the venue "Bei Max und Mathilde" (At Max and Mathilde's), but Mathilde would rather return his investment. Because she can't afford to do so, Max is in financial trouble and is being relentlessly pursued by the tax authorities.

Newlyweds Käthe and Max met while studying law. Trouble ensues when Max takes on his first case without telling his wife.

Dan Douglas is a typical Scottish. When his niece Evelyne marries engineer Fred Keller aboard the ship to Scotland, he gives her a pearl necklace as dowry, but it's false. The newlyweds face their differences when the necklace gets lost.

Theo Lubitz, owner of a travel agency, is in love with his pretty secretary Carola. In his spare time, he plays center forward for a soccer club.

A hilarious comedy of errors starring Dolly Haas: Annie, the locksmith's daughter, and Georg, a car salesman, meet at the fair but quickly lose touch. Later, Annie is tasked by her father with delivering new locks to a countess's castle. At the train station, she is mistaken for the countess's niece, whose arrival is imminent. She is taken to the castle in a magnificent carriage and encounters Georg again, who is out for an unauthorized joyride in a stylish car. Each now believes the other to be extremely wealthy. When the real countess arrives at the castle, she enjoys playing along with the charade and poses as her own companion, with whom Count Egon falls in love. After the confusion is resolved, there are two happy couples.

Composer Franz Schubert becomes involved with a family with three daughters, falling in love with the two blonds, first one, then the other; but will he notice the quiet brunet third daughter, who has fallen madly in love with him?

A moron buys a worthless piece of land, which a swindler passed off as an oil field.

Herr Eickmeyer is a wealthy parfumier: well past middle age, and stout with it. His blonde wife Lissy is much younger, pretty and vivacious. Since Eickmeyer can't keep up with his young wife, he commissions a companion for her in the form of a life-sized talking clockwork man, purchased for 5,000 deutschemarks ... to be shipped to his home immediately it's assembled.

Gretl has been living in Vienna ever since her father, Klaghofer, a small general store owner, tried to marry her off against her will to the wealthy Gruber farmer. Her disgruntled father never opened a single one of her letters. A postcard tells him that Gretl has married—and, he mistakenly assumes, to a rich man. Klaghofer sets out to celebrate the reconciliation. But as soon as he leaves his provincial Austrian hometown and arrives in Vienna, Klaghofer causes utter chaos. In the process, he repairs a troubled marriage and is delighted at the happy ending for everyone involved.

Jenny confronts her cousin Harry: Did he embezzle her fortune? No. But he escapes with married lover Germaine only to return quickly because her husband pursues them. Jenny is convinced Harry is his own double and arrests him at gunpoint.

The film is an adaptation of the 1891 operetta Der Vogelhändler by composer Carl Zeller, with libretto by Moritz West and Ludwig Held, though it incorporates few of the original songs, using them mostly instrumentally or in the background. The plot follows Adam, a Tyrolean bird seller in 18th-century Rhineland, who hopes to marry his beloved Christl, a postmaster's daughter; to secure his future, she arranges for him to perform at court, but complications arise when she is mistakenly suspected of an affair with a philandering prince.

Klementine Plamershof is a fun-loving young woman. She has long been “confined” to a girls’ boarding school, where she is studying music with growing reluctance.