 When asked to provide his best detective, Police Commissioner Berthier recommends his deputy, Claude Lebel.Soon afterwards, Lebel is given special emergency powers to conduct his investigation, which is complicated by de Gaulle's refusal to change his planned public appearances.Colonel St. Clair, a personal aide to the President and one of the cabinet members, discloses what the government knows to his mistress Denise, who passes this information on to her OAS contact.