The plot revolves around an oil swindle in a South American country.
Bernard, Sleeper Coach conductor and automobile inventor, is confused to be the racing car company president, and falls in love with a countess, who is actually a slogan prize winner chorine.
In love with his cousin, the gentle Émeline, a country gentleman, unaware of matters of love, decides to go to Paris, in order to lose his candor. She will prefer to avoid this hazardous and problematic move.
When he is not conducting his orchestra, a talented young man invents a device to thwart car thieves.Associating himself with a rich Dutch baron, he falls in love with the baron's daughter.
There are collectors and collectors. As far as he is concerned, Monsieur Coquelet has brought together a collection of historical... garters! So imagine his reaction when he realizes his most invaluable piece has been stolen... Municipal police and gendarmerie are alerted. The culprit is caught at long last but he is not... among the usual suspects!
