The year is 1855. The British government has fallen. Into this crisis comes Thomas De Quincey, one of the most notorious personalities of Victorian England. Along with his daughter Emily and their Scotland Yard companions, Ryan and Becker, he finds himself confronted by a murderer who is targeting members of the elite. De Quincey and his friends must race to protect their monarch, uncovering old conspiracies and the heartbreaking past of a man whose lust for revenge has destroyed his soul.