The true story of Maureen Kearney, the head union representative of a French multinational nuclear powerhouse. She became a whistleblower, denouncing top-secret deals that shook the French nuclear sector. Alone against the world, she fought government ministers and industry leaders, tooth and nail to bring the scandal to light and to defend more than 50,000 jobs.. Her life was turned upside down when she was violently assaulted in her own home... The investigation is carried out under pressure: the subject is sensitive. Suddenly, new elements create doubt in the minds of the investigators. At first a victim, Maureen becomes a suspect.
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.