Inspector Abberline is charged with catching Jack the Ripper. However he is struggling with an opium addiction and the ghosts of his dead wife and child. Nevertheless Abberline soon discovers that the Ripper is a man with an expert’s knowledge of human anatomy and some kind of connection to the Freemasons. As his investigations continue, he meets prostitute Mary Kelly and following her leads discovers that the killings are connected to people in the highest reaches of British society. But as he gets closer to revealing the culprit, both he and Mary find themselves in mortal danger.