Season 4 of the series Les Rivières Pourpres shot by cinematographer Vincent Gallot is released tonight on France 2. Olivier Marchal and Erika Sainte in the roles of Pierre Niemans and Camille Delaunay are directed by David Morley. The pair will have to support each other more than ever, facing the strangeness of their new business in the four corners of France. The series is produced by Storia Télévision.