Paris during the early part of the 21st Century: dark with fog, riots over police killings, and Far Right demagogues. Here state criminal investigator Stanislas Cassel works at the Palace of Justice. Ashamed he's a grandson of a French Nazi collaborator during Germany's WWII Occupation of France, he avoids anything political. Instead he buries himself, solving small crimes.

One dossier involves a pensioner's bizarre murder. During his investigation, Cassel meets a beautiful Jewish woman, whose family the Germans killed. Haunted by this, she tries to alert him to the Far Right's re-emergence, but to no avail.

Tragedy strikes. He awakes to his blindness and understands a murderous evil, larger than his small crimes, as the Occupation portended, lurks. This awakening motivates him to get to the heart of the pensioner's death. Murder Without Pity, a mystery story about the past, the present, betrayal, murder, redemption.