A young wild girl, Fanchon, lives in a forest with her eccentric grandmother who is suspected by the villagers of being a witch. The unkempt Fanchon suffers from her grandmother's sorceress reputation. One day the girl rescues a boy from drowning and they fall in love, but Fanchon won't agree to marry him unless his father asks her. A year later the boy has fallen very ill and it is only the presence of the enchanting Fanchon that helps to restore his health.
Writer George Sand (played by Ariane Ascaride) takes a young peasant girl under her wing.
The film depitcs the life of the French author George Sand.