Ziarno prawdy

Directed by Borys Lankosz

A Grain of Truth is a film about prosecutor Teodor Szacki, who leaves Warsaw and moves to Sandomierz. There another mystery awaits for him to solve. The main protagonist is portrayed by Robert Więckiewicz, who is currently one of the most popular actors in Poland.

One day, a naked body of a woman, a well-known and valued social activist, is found near the synagogue in Sandomierz.  Despite hardships, Szacki intends to crack this nut. To find the culprit, he seeks the assistance of the local police force. He cooperates with Prosecutor Barbara Dobieraj (Magdalena Walach) and Inspector Leon Wilczur (Jerzy Trela). With all the frenzy in the mass media about the case, he finds it quite difficult to get his head around this unprecedented jigsaw, as certain evidence points to a ritual murder. The complex relations between the Polish and Jewish communities come to light, as does a story from the past and the so-called “blood legend” with links to a painting by Karol de Prevot, in which we see a ritual murder performed by Jews.

A Grain of Truth is a crime story that will have you at the edge of your seat to the very end.

The Parish Church in Chełmno on the screen

The film crew spent two days in Chełmno shooting inside the St. Mary Church. The scenes shot inside the parish church featured, inter alia, Robert Więckiewicz and Jacek Koman, an actor popular for his role in the TV series Doctors filmed in Toruń.


  • The film was shot from 31st March 2014 to 27th May 2014.
  • The film crew paid visits to Sandomierz, Chełmno, Śmiłów, Wysiadłów, Otwock, Lublin, and Warsaw.
  • A Grain of Truth is a film adaptation of the second part of the trilogy written by Zygmunt Miłoszewski. Entanglement, the first part of the trilogy directed by Jacek Bromski and based on a book under the same title, was released in cinemas in 2011.
  • The painting of the ritual murder from the 18th Century by Karol de Prevot, on display inside the cathedral in Sandomierz was inaccessible in the years 2006-2014, due to its disturbing content. It was put back on public display in 2014.

Information on the film

Ziarno prawdy / A Grain of Truth

Poland 2015, 110′

Directed by: Borys Lankosz

Screenplay: Borys Lankosz, Zygmunt Miłoszewski

Cinematography: Łukasz Bielan

Music: Abel Korzeniowski

Produced by: Studio Rewers

Cast: Robert Więckiewicz, Jerzy Trela, Magdalena Walach, Aleksandra Hamkało, Andrzej Zieliński, Krzysztof Pieczyński, Modest Ruciński, Arkadiusz Jakubik, Piotr Głowacki, and others

Selected Awards

Gdynia Film Festival – nomination for the Golden Lions; The Tadeusz Szymkow Festival of Film Acting in Wrocław – the Golden Puppy Award for Krzysztof Pieczyński for the best supporting male character, and nomination for Magdalena Walach for the best supporting female character; Kołobrzeg Suspense Film Festival – Audience Awards, and others.