The year is 1895. The police don't have the resources to deal with everything that goes on in the capital. The rich turn to a celebrated private detective when they need help - Sherlock Holmes. But in densely-populated South London where crimes are sleazier and Holmes rarely visits people turn to Arrowood a private investigator who despises Holmes his wealthy clientele and his showy forensic approach to crime. Arrowood understands people not clues.