Revered French actor Gérard Depardieu, featured in over 170 film and television projects, has, in recent years, been disgraced. Countless allegations of sexual assault and abuse have brought this titan under fire.

Arsène Muselier returns to his home village at the end of the First World War. His only injury is a head wound, which sometimes provokes periods of delirium and fury. As he renews his acquaintance with the people he left behind - his mother, the old farmhand who brought him up after his father's death, his former girlfriend, and many others - he becomes fascinated by the legend of La Vouivre, a creature with the body of a woman who lives in the marsh, surrounded by vipers. One day, Arsène sees the strange woman - she is naked, beautiful, alluring, and he is instantly enchanted by her. Can she be real, or is she merely a creation of his damaged mind...?

Reading old letters, a young girl from Châteauroux, Carole, discovers that her father was an American soldier whose regiment was based in town in the 1950s. She will try by all means to find people who remember this period.