Cal McDonald has a special talent for spotting and seeking out the strange beings walk among us. They live as postal workers and taxi drivers, lurking in the sewers and roaming the streets ever awake and always on the hunt. Cal has made a career helping and hunting the dark creatures. Among the docile ghouls of the city he is a friend. But to most, those who prey on innocent human lives, Cal is a sworn enemy. Now Cal finds himself in the middle of the strangest adventure of his life. People are dropping dead all over Washington DC and the cause is a mystery. The bodies are unmarked, yet their brains are simply gone. Cal will have to use all of his resources and dig deep into his past to unravel the truth, which is more terrible and absurd than he could have ever expected.