You might think that helping a friend's widow to stop a lawyer from stealing her husband's corpse would be the strangest thing on your To Do list. But life is rarely that simple for Felix Castor.

A brutal murder in King's Cross bears all the hallmarks of a long-dead American serial killer, and it takes more good sense than Castor possesses not to get involved. He's also fighting a legal battle over the body - if not the soul - of his possessed friend, Rafi, and can't shake the feeling that his three problems might be related.

With the help of the succubus Juliet and paranoid zombie data-fence Nicky Heath, Castor just might have a chance of fitting the pieces together before someone drops him down a lift shaft or rips his throat out.

Or not. . .