In the 19th century, England controlled the biggest Empire the world had ever seen. Scientific breakthroughs, huge scale engineering, and great leaps in medicine led Britain's reign of global power. And yet, behind the facade there was a darkness. An unimaginable world of evil - theft, rape, murder, and more. This was the real world of Jack the Ripper and Sherlock Holmes. But there was a lesser known killer on the loose who was far worse than any of the others.