Marie Lemaire is poisoned during a dinner that brings together an association of merchants. She is the heiress of her recently deceased husband, François, who was the owner of the largest glass factory in the city. All the guests are potential suspects and the investigators must sort out the real from the fake, detect motives and verify alibis. Olivia Rousseau, one of the guests, ex-mistress of François Lemaire who left her to marry Marie, is dead at her home. In a letter, she declared that she had poisoned Marie and killed herself in the same way.
Florence Pernel
as Élisabeth Richard
Lola Dewaere
as Caroline Martinez
Guillaume Cramoisan
as Capitaine Charles Jouanic
Marianne Basler
as Olivia Rousseau
Louise Pasteau
as Marie Lemaire
Florent Peyre
as Grégoire Spaletta
Stéphane Blancafort
as Serge Pellegrino
Matthieu Burnel
as Jérôme Leclerc
Gwendolyn Gourvenec
as Clémence Roux
Charlie Joirkin
as Julie Caron
Jérôme Pouly
as Stéphane Caron
Raphaël Ferret
as Hugo Fontaine
