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...?
| Actor | Role |
|---|---|
 Jean CarmetRequiem | Requiem |
 Suzanne FlonLouise Muselier | Louise Muselier |
 Lambert WilsonArsène Muselier | Arsène Muselier |
 Jacques DufilhoUrbain | Urbain |
 Macha MérilLa rodinet | La rodinet |
 Laurence TreilLa vouivre | La vouivre |
| FFrançois TixierAngèle | Angèle |
 Anne-Marie PisaniEmilie | Emilie |
 Kathy Kriegel(as Kathie Kriegel) | (as Kathie Kriegel) |
 Jean-Jacques MoreauVictor | Victor |
 Paola LanziBelette | Belette |
 Bruno Abraham-KremerLe curé | Le curé |
| MMichel ArroyoLe convoyeur | Le convoyeur |
 Catherine ArtigalaRose | Rose |
 Jean-Pierre DravelJonquier | Jonquier |
 Pierre ForestPontois | Pontois |
 Mireille FranchinoLoïse | Loïse |
 Alain FrérotJudet | Judet |
 Jean GrécaultLe facteur Bedeau | Le facteur Bedeau |
| GGilbert GuillaudL'instituteur | L'instituteur |
| MMarc LadorArmand | Armand |
| LLudovic MailyLe gamin Mindeur | Le gamin Mindeur |
 Laurence MasliahJuliette | Juliette |
 Marie MergeyLa mère Mindeur | La mère Mindeur |
 Didier PainL'homme de l'auberge | L'homme de l'auberge |
 Jean PéméjaLe voiturier | Le voiturier |
 Michel PilorgéPilorget | Pilorget |
 Pierre VialLe père Mindeur | Le père Mindeur |