The murder of a convict held in custody seems to be connected with dark and mysterious events from two years before
A prisoner was murdered in on of the largest detention centres, a facility under the control of director Nowacki. Now, the investigation has started. Sergeant Berg is called to interrogation, he is one of the participants in the convoy two years ago, a subject which no one seems to want to talk about, and that may have something to do with the crime. Despite the conspiratorial silence, an inquisitive prosecutor gradually begins to discover the shocking truth.