Saul Garamond returns from a journey in late evening and sneaks into his bedroom to avoid a confrontation with his estranged father. He awakes to the intrusion of police and the news that his father has been murdered and he is the number-one suspect. Forgotten in a jail cell, he is freed by a peculiar, stinking, and impossibly strong stranger--only to find rescue may be worse than imprisonment. The plot moves through subterranean and rooftop London quick as a techno beat, as Saul discovers his curious heritage and finds himself marked for death in an age-old secret war among frightful inhuman powers.