This is a film based on real events and real people. The story takes place in Marseilles in the 1970s and 1980s, when du Yaldan plays police officer Pierre Michel to track down for years, trying to destroy the largest drug trafficking organization in Marseilles. The group shipped drugs from Turkey to the United States via France, thus providing a large supply of goods to the drug market in the United States. The French Drug trafficking Network, directed by Hollywood director William Friedkin in 1971, was set in the same context.