After a confinement in a harem, an illiterate Algerian takes her revenge by reinventing herself as a writer. Under the name of Elissa Rhaïs, she becomes the darling of the literary Paris of the inter-war period, in search of oriental fantasies.

Hippolyte, the titular oddball, is a far from typical country lawyer. He has been happily married to the woman of his dreams for 15 years, but has an incurable penchant for practical (or rather impractical) jokes.