It centres on the life of the entomologist Jean-Henri Fabre and his total devotion to studying insect behavior, travelling from Avignon to Paris, from Paris to his death in Sérignan. He is honoured by the French president Raymond Poincaré and his patience, obstinacy and knowledge are also recognised by Napoleon III, the publisher Charles Delagrave and the philosopher John Stuart Mill. They reach their climax in his book, Souvenirs entomologiques.
M. Fabre
La comtesse de la Porte
John Stuart Mill
Le directeur du collège
Napoléon III
Eugénie de Montijo
Antonia Fabre
Le censeur d'Avignon
Aglaë âgée
Le ministre Victor Duruy
L'éditeur Charles Delagrave
Charles Delagrave
Jules
Le maire
La deuxième femme
Le fiancé d'Antonia
Le petit Jules Fabre
Aglaë Fabre
Le prince impérial
Marie Fabre
L'aubergiste (uncredited)
(uncredited)
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