Based on the true story of Maureen Kearney (Isabelle Huppert), the head union representative of a French multinational nuclear powerhouse who became a whistleblower. Kearney denounced top-secret deals that shook the French nuclear sector. Alone against the world, she fought government ministers and industry leaders to defend more than 50,000 jobs. Her life was turned upside down when she was violently assaulted in her own home. Suddenly, new elements create doubt in the minds of the investigators. At first a victim, Maureen becomes a suspect.