L'Affaire des poisons

The Affair of the Poisons is a 1955 French-Italian historical drama film directed by Henri Decoin and starring Danielle Darrieux, Viviane Romance and Paul Meurisse. The film is adapted from the 1907 play of the same title by Victorien Sardou. It was shot in Technicolor at the Boulogne Studios in Paris. The film's sets were designed by the art director Jean d'Eaubonne. The film is set against the backdrop of the real Affair of the Poisons in seventeenth-century France, and demonstrates a darker tone than many more nostalgic depictions of the past.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.

Poster © the film's rights holders.