Heinrich Troxbömker

After losing almost all of his money, a young marquis discovers that among his few remaining possessions is a magical piece of leather which is capable of fulfilling any wish. However, every use of it will make it less effective and furthermore will shorten the life of its user. Nevertheless, the marquis uses the magical object ruthlessly in order to regain his wealth and especially to get the love of Feodora, an actress. But all his efforts only seem to lead to doom…

A German wartime biography of Rudolf Diesel, inventor of the Diesel engine. The movie links the importance of the engine to the war by starting the movie with newsreel clips of German Navy U-boats in action.

Successful playwright goes undercover to get new material and finds romance.