The so-called 'Group 2 of Homicides' was made up of national police officers who, since 1982 and for 20 years, solved more than 200 cases that shocked society at the time, with their operations center based in the Higher Police Headquarters of Zaragoza. This documentary series recreates the investigations of some of the harshest criminal acts that occurred in Spain in the 1980s. Crimes of passion, violent deaths, kidnappings, disappearances ...