In downtown Manhattan, a gruesome underground charnel-house is discovered, containing the bones of murder victims. Research reveals a serial killer at work in New York's notorious Five Points neighbourhood in the 1880s. But publication of the story seems to ignite a new series of similar killings.

In downtown Manhattan, a gruesome underground charnel-house is discovered, containing the bones of murder victims. Research reveals a serial killer at work in New York's notorious Five Points neighbourhood in the 1880s. But publication of the story seems to ignite a new series of similar killings.