London, 1813. A homeless child was abducted, tortured, and murdered. Few care about a street urchin's fate, but Sebastian refuses to let this killer go unpunished. Uncovering a disturbing pattern of missing children, he is drawn into a shadowy, sadistic world. As he follows a grim trail that leads from the Marquis de Sade to the city's most notorious brothels, he comes to a horrifying realization: someone from society's upper echelon is preying upon the vulnerable. And though dark forces are moving against him, Sebastian will risk everything to keep more innocents from harm.