Some films about the Holocaust portray the victims, others examine the perpetrators, and a few explore the uncomfortable territory occupied by people who believed history had nothing to do with them. Joseph Losey’s Mr. Klein (Monsieur Klein, 1976), starring Alain Delon, belongs firmly to the third category. It is a chilling psychological mystery about identity, antisemitism, bureaucracy, and the moral blindness of a man who discovers that the machinery of persecution does not necessarily distinguish between those it was designed to destroy and those who once benefited from its existence.