In an enchanted forest, back in the time of the Druids, the shepherd Celadon and the shepherdess Astree share a pure and chaste love. Fooled by a suitor, Astree dismisses Celadon, who throws himself into a river out of despair. She thinks he's dead, but he's been secretly rescued by some nymphs. Faithful to the promise he made to Astree to never appear before her again, Celadon must overcome many obstacles to break the curse. Mad with love and despair, coveted by the nymphs, surrounded by rivals, and obliged to disguise himself as a woman to be near the one he loves, will he manage to make himself known without breaking his oath? A romance filled with doubt, hazards, and delicious temptations.