In the West End of 1950s London, plans for a movie version of a smash-hit play come to an abrupt halt after a pivotal member of the crew is murdered. When world-weary Inspector Stoppard and eager rookie Constable Stalker take on the case, the two find themselves thrown into a puzzling whodunit within the glamorously sordid theater underground, investigating the mysterious homicide at their own peril.

Two young people and their dæmons, with everything at stake, find themselves at the centre of a terrifying manhunt. In their care is a tiny child called Lyra Belacqua, and in that child lies the fate of the future. And as the waters rise around them, powerful adversaries conspire for mastery of Dust: salvation to some, the source of infinite corruption to others.

The early days of a young Endeavour Morse, whose experiences as a detective constable with the Oxford City Police will ultimately shape his future.