Wedding in Blood

Lucienne Delamare and Pierre Maury are having an affair. Lucienne's husband Paul is the mayor, and a French deputy. Pierre's wife Clotilde has been weak and sickly for years. Lucienne's husband holds no excitement for her, and he is always away in Paris on business. Lucienne and Pierre have a secret meeting spot by a lake. Pierre's wife dies suddenly, by suicide the town gossips believe. Pierre confesses otherwise to Lucienne. Then Paul discovers proof of his wife's affair... (imdb)