Anne Landois is a showrunner, a profession still uncommon in France at the crossroad between creative direction and head writing. In this capacity, she is in charge of overseeing and developing the series’ story line but also of acting as a “transmission belt” between the crew members: screenwriters, set designers, casting directors, actors, directors. Anne Landois develops the story line in collaboration with legal and law enforcement professionals that help make the series realistic. “Spiral (Engrenages)” is the first realistic “police-justice” series developed by Canal+ and is now its longest-running series on the air.