The mechanic Behnke wants to join the Nazi party to secure a good living. However, after his Jewish neighbors have been taken away, he changes his views. Trying to remain "a non-political man," he withdraws from reality and becomes a Nazis laborer.
In the very oldfashioned town of Ostend suddenly 13 suitcases are delivered to the hotel, with a note, that O.F. will be here soon and needs 6 rooms (the hotel just has five). This event, probably the biggest in 300 years, starts a small wave of modernisation, yet everybody is wondering who O.F. is. Journalist Stix and architect Stark have an idea how to use this event. They proclaim, that O.F. is a former citizen of the town, who became a millionaire abroad. They tell their fellow citizens that the town still needs modernisation, like better hotels, nightclubs, shops, etc. And soon, Ostend is a boomtown, then a capital. The architect, responsible for the new buildings is finaly allowed to marry the mayor's daughter, while Stix marries the cabaret star and the widowed mayor his new secretary. The only problem is, O.F. hasn't shown up, while finance experts from all over the world are trying to solve the depression problem.
Musical vehicle for up and coming Dolly Haas, as a would be actress with a would be composer boyfriend. She sings,at one point, that she has the walk of (Lilian) Harvey, the mouth of Garbo and the legs of Dietrich.
Peter Verdy falls in love with Lola (Ossi Oswalda) who is mistaken for a boy when she appears in stage regalia before a rich uncle who has other marriage plans for his nephew. The tangle ensuing is finally sorted out with excellent results all round.
The film starts with a woman on the run from her millionaire husband giving birth to a daughter in the home of a washerwoman. The woman dies in childbirth, but the baby survives. The washerwoman leaves the baby in a horsedrawn Parisian taxicab (No. 13). The paperwork of the birth is lost in a huge tome. Sixteen years pass. The tome is bought by a poor student. One day his bookshelf collapses, and the tome opens at the page where the paperwork has been hidden. The student realises that the paperwork relates to a millionaire who has spent the last sixteen years looking for his pregnant wife. The student traces the washerwoman, and he tricks her into confessing what she has done with the baby. Meanwhile, the baby has been adopted by the cab driver and his wife, and has grown into Lili Damita.
