


As they explore a night city where the normal rules do not apply, they're drawn deeper into a case that involves murder, arson, kidnapping, blackmail, loneliness, and bats. To catch him, the PCU switches to graveyard shifts, but the team still comes up short. When another body is pulled from the river at dawn, it becomes clear that a killer lurks in the night.

Was this a botched satanic ritual pulled off by bored teenagers, a gang initiation, or the work of a mastermind with grander intentions? Bryant and May set off in search of answers and are soon reminded that London is a city steeped in blood and magic. When a man is found hanging upside down inside a willow tree on Hampstead Heath, surrounded by a baffling assortment of occult objects, the Peculiar Crimes Unit is called in to investigate. The brilliant Arthur Bryant and John May take the late, late shift in a cat-and-mouse hunt with a killer who preys on his victims at the same time every night-the lonely hour of 4 A.M.
