Falke and Grosz are entrusted with a delicate task under strict discretion: 17-year-old Juan Mendez has disappeared from a fine boarding school where celebrities and elites from business and politics have their children educated. Juan's father is the ambassador of an authoritarian country. The questionable despot is known for having members of the opposition and journalists arrested and tortured. While Juan's girlfriend Hanna has the worst fears, his best friend August suspects that the boy just wants to avoid the official celebrations of the state visit. Whatever the reason, Juan's disappearance puts the Bergsons, the teachers who run the school, in distress. The good reputation of the school is its most important asset. In the course of the investigations by Falke and Grosz, the boy's bodyguard comes under suspicion, especially when a blackmail letter appears: Juan's kidnappers are trying to free imprisoned opponents of the regime and journalists.