 Topsy Müller wants to be a professional dancer, but her father thinks it s an improper profession for a respectable girl, so she works at a newspaper stall in a Berlin hotel. When a new revue opens in town, the Press Manager, Otto Schräge of the revue goes to the hotel to see the leading lady, and Topsy recognises him from a photograph in the newspaper, but both the impresario, Korty, and Otto are in the picture, and Topsy assumes Otto is the boss, Korty. Romantic interest develops until Topsy s father bursts in during a kiss, and he explodes. Nonetheless the revue is short of performers and they eventually reach Topsy by telephone, and persuade her to come in to see the boss to discuss a possible part; she arrives and thinks that Otto is Korty and the real Korty is someone else. After some song and dance numbers, Topsy s father arrives and his worst suspicions about Bohemian theatre life are confirmed; Korty s wife arrives and is told that her husband has an unknown son (Otto of course, in his identity as Mr Korty). Everything is getting very complicated; will another song and dance number help everyione to resolve the misunderstnadings and live happily ever after?