A Grain of Truth (Polish original title: Ziarno prawdy) is a 2015 Polish film directed by Borys Lankosz, film adaptation of the novel of the same title by Zygmunt Miłoszewski.
It was shot in Sandomierz, Śmiłów, Wysiadłów (gas station), Chełmno (cathedral), Otwock, Warsaw, and Lublin.
[1] The naked body of a young woman is found under the Sandomierz synagogue.
It turns out that the corpse of the woman was bled, and the expert says that the murder weapon found on the spot is used during ritual slaughter of animals.
Linking to the dark history of ritual murders of children triggers anti-Semitic mood.