Who and why shot Hungarian and German infants and young children in the head and exterminated entire families near the town of Prerov (Prerau) in Moravia on the night of June 18, 1945? Why did the bodies of the women and children killed here had to be cremated two years after this massacre - after these bodies were disinterred by army units - in the crematorium of the also Moravian city of Olomouc? Why didn't the Czech historian, who investigated the fate of the slaughtered Hungarian and German families and who also fought for the last honors to be paid to them, receive no praise or medal from Budapest? And what was the fate of the 90 Hungarian leventes handed over to the soldiers of the Slovak army by the soldiers of the Soviet army occupying Austria at Ligetfalu below Bratislava? This documentary explores the story of two hitherto unexplored mass murder in Pronov and Bratislava in the village of Bratislava. These two massacres, as stated in the film, are "linked by the sameness of the perpetrators, the nationality of the victims and the motivation to commit the massacre". This common motivation was nothing else than the full implementation of genocide against the Hungarian and German minorities in Upper Hungary. Survivors of the German and Hungarian camps also speak in the film. Based on the testimonies of eyewitnesses it can be traced when, under what circumstances, the excavation of the remains of hundreds - or possibly thousands - of people who were toss into the unmarked graves began, and then, to this day, how and why these works came to a permanent halt, and the mass graves stayed under the blocks of a housing estate in Bratislava.