Jarocin – a small town in Greater Poland. In the 1980s, it was the venue for one of the largest rock festivals in Europe. In 2004, the Łódź branch of the Institute of National Remembrance published an album presenting previously unknown documents concerning the infiltration of the festival by the Security Service of the Polish People's Republic. They provide new insight into the methods used by the secret services at the time and show the extraordinary scale of the activities carried out against the festival. The film shows, for the first time, the original Security Service reports on Jarocin and dozens of photographs taken by officers of its participants.
