Breslau in the 1920s is the haunt of marquises and merchants, gamblers and gutter-rats. Eberhard Mock, the hardened Criminal Councillor, fits right in as he sways from the basements of grubby casinos to his beautiful young wife in their palatial mansion. But a series of sinister murders has taken Mock out of the bedroom and into the archives. While Mock ransacks the city for clues, driven mad by the killer's tantalising notes, his wife is seeking attention elsewhere.
