Elfie von Kalckreuth

Thomas Winter crashes his sports plane into the sea off Corsica. His wife Julia is looking forward to four million marks in life insurance. During the settlement, an employee of the insurance company is remarkably helpful - too helpful for the taste of a detective and an inspector who don't really want to believe in an accident. And suddenly the man who was believed dead runs into his not-so-sad widow...

Both Scotland Yard and an amateur American sleuth are tracking a master criminal known as The Frog. This moniker refers to the bulging-eyed mask worn by the evildoer, and is reflected by the frog icons painfully tatooed onto the forearms of his henchmen. The trail leads to the country manor of an enigmatic, steely-eyed nabob, whose repressed son has eyes for the artistes at the Lolita cabaret, and whose lovely daughter captures the fancy of both the American playboy and the villain himself. Murder, kidnapping and seduction ensue.

Bad Ischl is in a state of great excitement: the Emperor of Austria-Hungary, the Prussian Emperor, and the Russian Tsar are expected. But then plans to assassinate the heads of state become known. The Austro-Hungarian secret service deploys its "special unit": Mikosch and his helpers are to secretly neutralize the assassin...

Unscrupulous girl traders transport unsuspecting blonde girls from a nightclub in Amsterdam to a brothel in Havana. The young journalist Verena Linkmann wants to expose the slave trade, disguises herself as an available dancer.