A stiff German professor inherits a house in Montevideo, Uruguay.
After a truck carrying a cargo of narcotics is held up by rival smugglers, the driver sets out to prove his innocence.
Several oil companies are trying to get hold of Prof. Wilkens, who has discovered a revolutionary formula for a new type of fuel that will put all the oil companies out of business and control the world's economy.
Popular cheeky character from 19th century German literature, Bonifatius Kiesewetter, is a magnet for the ladies, but he has his eyes set on the Baroness, her daughters and her estate.