Malinowski, une contre-enquête solitaire commence… Malinowski, Captain of the Murder Squad, is used to being confronted by the worst kind of crimes. But when his own daughter is murdered, things take a dramatic turn. Overwhelmed by his distress, his colleagues carry out an investigation at the double and a suspect is quickly arrested, then sentenced.
From deep in his cell, he who all clues indicate is guilty of the crime proclaims his innocence and decides to write to Malinowski. And what if he is innocent? The doubts of a cop slowly replace the pain of a father who has obtained justice. For Malinowski, a solitary counter investigation begins.