In 1991, on the outskirts of Tenja, Josip Reihl Kir - the chief of the Osijek Police Department, a man dedicated to negotiations and avoiding war - was assassinated. Peacemaker is a story about the last few months of his life, in the dawn of the bloodthirsty Croatian-Serbian war, which Kir had been trying hard to prevent, told through the statements of a few witnesses and archive materials from the era. Still today, after over 30 years, many elements of that assassination remain unclear and the possible contractors - still unknown. Filmmaker Ivan Ramljak is one of the most significant Croatian author of documentaries, recognizable for his particular approach to historic issues.