Bob Howard is an IT specialist and field agent for the Laundry, the branch of Her Majesty s secret service that deals with occult threats.

Overworked and underpaid, Bob is used to his two jobs overflowing from a strict nine to five and, since his wife Mo has a very similar job description, he understands that work will sometimes follow her home, too. But when work involves zombie assassins and minions of a mad god's cult, he realises things are spinning out of control.

When a top-secret dossier goes missing and his boss Angleton is implicated, Bob must contend with suspiciously helpful Russian intelligence operatives and an unscrupulous apocalyptic cult before confronting the decades-old secret that lies at the heart of the Laundry: what is so important about the missing Fuller Memorandum? And why are all the people who know dying?