The film is loosely based on a true story about Paolo Roberto, later a professional boxer and TV presenter. Because of his Italian roots, Paolo is dealing with an identity crisis. With an admiration of Kung Fu films and with his teenage aggressions, Paolo practices violence on innocent citizens in Stockholm.
Following the 1975 West German Embassy siege in Stockholm, the German Red Army Faction (RAF) terrorist Norbert Kröcher allegedly planned to kidnap Anna-Greta Leijon. The goal was to exchange Leijon for 8 of his comrades held in German prisons. The plan, known as Operation Leo, was intercepted by the Swedish Security Service (Säpo) and Kröcher and other team members was arrested on 31 March in Stockholm.
