Les Dossiers de l'Agence O(1968)

Les Dossiers de l'Agence O is a French-Canadian detective series that follows the skilled team at a Parisian private investigation firm nestled in the Passage Choiseul. Led by Torrence at the front desk, the agency's operatives—Émilie le Roux, Mademoiselle Berthe, and Barbet—work behind the scenes, observing clients through a hidden mirror as they unravel mysteries across the city. From tracking a man disguised as an elderly woman to solving the enigma of the Prisoner of Lagny and exposing blackmail schemes, the detectives tackle each case with practiced expertise. Created by Marc Simenon, this thirteen-episode series originally aired in Quebec in late 1967 before reaching French audiences in 1968, capturing the intrigue and procedural craft of mid-century detective work.