An anti-nuclear parable, the film tells the story of villagers who each year traditionally hold "sap weddings", thus paying homage to the forest. But a nuclear power plant must be built there. The film was presented in competition at the Thonon-les-Bains festival in 1978.
| Actor | Role |
|---|---|
 Jean NégroniJérôme Capdevielle | Jérôme Capdevielle |
 Pierre TabardLaire | Laire |
 Catherine RétoréClémence, fille de Jérôme | Clémence, fille de Jérôme |
| DDominique LasseurGuillaume Peltuvier | Guillaume Peltuvier |
| JJean DurozierLe maire, Barousse père | Le maire, Barousse père |
| MMichel SimonianChalucet | Chalucet |
 Philippe ArthuysLe vieux Lucien | Le vieux Lucien |