In this mystery about a man who is willing to risk everything to discover the truth, Holocaust researcher Yoel is in the midst of a widely covered legal battle with powerful forces in Austria over a brutal massacre of Jews that took place toward the end of World War II in the village of Lensdorf. An influential family of industrialists — on whose property the murder took place — is planning to build a real-estate project on the land. Yoel suspects that their aim is to bury the affair for good, but he has trouble finding conclusive evidence that would stop the project. While investigating the incident, Yoel examines classified testimonies of Holocaust survivors, and to his shock and surprise he finds a testimony given by his mother, and in it she confesses to a substantial secret from her past. Yoel conducts a double investigation — one personal and the other scientific — but is trapped between walls of silence: the villagers’ denial of the Holocaust and his mother's silence about her past. As a historian with an unshakable commitment to the truth, he decides to continue his investigations even at the cost of ruining his personal and professional life.