Two men, lost in the desert, meet Queen Antinea, ruler of Atlantis.
Jérôme Crainquebille, is an ageing vegetable seller who has sold groceries from his cart in in Paris for over 40 years. One day, he is harassed by a policeman who insists that he moves on. When he protests, Crainquebille is arrested, supposedly for swearing at the policeman.
