Muichkine, a young Russian prince, returns home to St. Petersburg from a mental institution, determined to spread decency and kindness in the harsh and cruel world. He becomes betrothed to an innocent young girl while trying to save a less-innocent woman from her own travail, but jealousy and his own naivete conjoin to bring about unimaginable tragedy.
Monsieur Benoit's existence is transformed when his dour wife suddenly thinks in a bout of folly that she will become a chanteuse and her husband the impresario.
Bastien and Furet are a journalist and a photographer working together as a team on the newspaper 'L'Echo du Jour'. Just as they are about to go off on a weekend break with Micky, their boss's secretary, they are sent to a crime scene to report the murder of a Russian named 'le Moujik'.