Six-Pack plot
After a murder is committed, Commissioner Nathan and his assistant Saule investigate the scene of the crime. They discover that the style of the murder matches that of a serial killer they've been searching for for months. All victims have something in common; they have all completed an extensive questionnaire at the American Embassy in France and are also registered here. Nathan and Saule conclude that the perpetrator must be working at the embassy. However, this institution is very inaccessible and not only does Nathan not receive help from his superiors, the Minister of the Interior forbids him to continue with his investigation. Nathan takes the law into his own hands and with the help of a young agent, whom he uses as bait, he tries to lure the killer into a trap.