For one hundred years, the Delaware Valley State Hospital at Cold River was known as a warehouse for the criminally insane. Two decades ago, it closed its doors forever. But a man named Luther never left. To this day he roams the catacombs beneath the abandoned hospital, waiting and watching.
On a late winter day a businessman is found brutally murdered in a Philadelphia park.
Homicide detectives Kevin Byrne and Jessica Balzano get the case.
They soon discover a two-year-old girl wandering the streets in the middle of the night, a little girl who does not speak. In her hands is a key piece of evidence that may be linked to a series of murders committed halfway around the world.
As the detectives investigate, and more bodies are found, they're drawn closer and closer to the doors of Luther's devious maze, to Die Traumkaufleute -- The Dream Merchants -- and the dark secrets of Cold River.
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