Deval shot “Héraclite l’obscur” in Tunisia in 1967, with his then-girlfriend and editor Jackie Raynal, in 35 mm and in color. He was the first Zanzibar member to shoot a film not only outside of Paris but also in an exotic location. “Héraclite l’obscur” is described by its author as a “philosophical peplum”. – spectacle theater

The obscure philosopher Georg Hermes almost withdrew from the world to concentrate on his studies, especially Heraclitus, having no relationship since his mother's death. When he wants a new suit for a lecture (actually very minor) about his new book, he meets the sisters Franziska, Breate and Marthe, who run a boutique, share a house and have a lover each. Those invite Georg to dinner, Franziska even on dates. Falling off a boat he gets naked with her, and they become lovers. The girls all take to Hermes and get him to move in, spoiled by all and offered polygamy.