In London, 1896, private enquiry agent Cyrus Barker's world is upturned when his longtime nemesis, Sebastian Nightwine, previously believed dead, turns up with evil on his mind, launching devastating and secretive attacks against not just Barker, but his network of friends and close associates.
In 1896, Dr. Sun Yat-Sen, would be reformer and revolutionary, turns up in London, running away from China's Imperial Qing Secret Service, who has placed a substantial bounty on his head for his political activities. Captured by those agents, he's imprisoned in the Chinese Embassy until he can be smuggled back to China to face execution.