The police arrest a man climbing over the wall of a cemetery after midnight. He claims that he is being blackmailed and is following instructions he received by mail to leave $1000 on a certain grave. It turns out that he's not the only one who got a blackmail letter from the same person--calling himself "The Black Panther"--and it also turns out that all the recipients are connected to an opera company.
An American goes to Germany to find his mother and discovers her in a concentration camp. With the help of an American-born widowed countess he seeks to engineer her escape.
In this French set comedy, five million francs change hands one weekend between a man pretending to be a millionaire and a woman pretending to be a Russian countess.
Banker Rudi Moebius and his counselor arrive in Wien for an arranged marriage which should solve their financial problems. Only they don't know, but Lucie Weidling is broken too, and in love with Gustl, a musician without the courage to elope. Meanwhile Rudi meets Steffi and falls in love not even knowing her name. He and Lucie become good friends and decide to help each other.
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.
