At the Central Theatre in the chorus girls' cloakroom, the girls have a very lively discussion: The ever-recurring topic - their various male acquaintances. The only one who doesn't join in the joke is the pretty Mette Madsen. She thinks her friends are frivolous and stupid. Oda Holm, who is a very pretty girl, full of sex appeal, claims that Mette, who is also an excellent chairwoman of the chorus girls' organization, is completely devoid of "Oomph". She is incapable of exerting any attraction on men. It becomes too much for Mette.
Composer Jørgen Rhoders lives an easy life, at least according to his son Per. Per and his stepsister, Ulla, decide to give their father a little trouble so that his compositions will improve. However, Jørgen deceives the children, and only when the children cause their parents to fall out does the situation seem to improve. Meanwhile, Ulla believes that Per is in love with Lily.
This German crime drama was based on a true story. Willy Forst stars as a poverty-stricken Italian glazier who falls in love with French hotel maid Rosa Valletti. Struck by the girl's resemblance to Leonardo Da Vinci's Mona Lisa, Forst manages to steal the painting from the Louvre in hopes of impressing his sweetheart. But when the girl proves to be a fickle sort, the crestfallen hero confesses his crime and is carted off to jail. Unwilling to admit that he'd been led astray by a woman, Forst claims that he stole the Mona Lisa to restore it to his native Italy, and as a result is hailed as a national hero! Raub der Mona Lisa was distributed in the U.S. by RKO Radio, under the title The Theft of the Mona Lisa.
