Argan, the imaginary patient, allows himself to be led by his wife and his doctors who take advantage of his weakness. Only his daughter has sincere love for him. He ends up accepting that she should marry the one she loves and not the benet, son of an apothecary, whom he intended for her.

Ricardo will try his luck in the capital after winning an amateur singing contest. He has many adventures. Kidnapped by gangsters, he is only freed by the intervention of his fiancée. Finally, the director of the "Folies Parisiennes" presents him with a contract.

The misadventures of two Parisian bohemians who imagine they've discovered oil in the South of France.