Set against the brooding backdrop of one of London's poorest slums Black Jack explores the mystery of Jack the Ripper. No mere mortal, but a demon masquerading as human, Jack the Ripper is intent on wreaking chaos and horror.

Only one person can stop him. Andrew Hewitt-Brown possesses the occult skills necessary to confront the demon. He decides to hunt the Ripper when his fiancée, Emma Hollander, a nurse working in Whitechapel, becomes the target of the fiend's insatiable evil.

Black Jack contains elements of magic and horror, but ultimately it is a testament to the love between two extraordinary people who must battle a great evil.