On a cold winter's evening in Dublin in the 1890s, Professor Cesare Lombroso, a renowned Italian criminologist, arrives in the city to give a talk. Meanwhile, a man has been gruesomely murdered in the nearby Phoenix Park, and the authorities appear to be covering it up. As the police begin inquiries, a powerful English military commander leads a sinister parallel investigation, and two writers become increasingly intent on solving the crime, no matter the cost. The murder, it seems, may have disturbing connections with the occult.
Lombroso, with his expertise in crime, is reluctantly drawn into the investigation and soon realises there may be dangerous consequences for his career. In fact, this murder may have profound implications for the very nature of life and death.
And the murderer may still be out there.