In one of the largest detention centers, led by the Director Nowacki ( Janusz Gajos ), comes to the murder of a prisoner. Begins an investigation. On hearing is called Sergeant Berg ( Przemyslaw Ivy ), one of the participants in the convoy two years ago, about the course of which no one ever wanted to talk, and that may have something to do with the crime committed. Despite the conspiracy of silence, inquisitive prosecutor ( Luke Lewandowski ) gradually begins to discover the shocking truth ... The convoy, led by Sergeant Zawada ( Robert WiAckiewicz ), transported criminal, nickname Teacher ( Ireneusz Czop ), accused of murdering two prison officers and their families. The prisoner was declared insane and sent him to a psychiatric hospital. They not all come to terms with such a scenario.