A team of police officers attached to Interpol is tasked with tracking down fugitives and finding missing persons abroad. The protagonists, Louise Lefranc, a cop haunted by the unsolved disappearance of a teenage girl; Captain Kieffer, an Interpol policeman; Myriam Zarka, a  gifted with diplomas; and Lieutenant Marciano, a new recruit who is looking for a second wind ... all will have to unravel affairs with international ramifications that will lead them from Italy to Germany or Tunisia, wherever a French national who has disappeared or has fled may be found.