Julien Brûlebois, a brave peasant from Auvergne, learns that he has been summoned to Strasbourg to collect an inheritance. Amazed by the operation of the bus that takes him from the station to his notary's home, he decides to buy it. What follows is a bewildering chase between the agents of the Strasbourg transport authority, the capitalists, the naive peasant and his lucid, pretty fiancée.

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