In the years before the Great War, M.R. James told ghost stories by candlelight to a handful of friends and scholars. Now, twenty-five years later, those men are dying, killed off one by one...

Called to the peaceful wooded churchyard of St-John's-at-Hampstead, Detective Chief Inspector Archie Penrose faces one of the most audacious and unusual murders of his career. The case leads Archie to Cambridge, where, coincidentally, his old friend Josephine Tey has recently settled.

Before long, another body is discovered. In the shadow of King's College Chapel, Archie uncovers a connection twenty-five years old which haunted both victims - as well as some of their living companions. As Archie and Josephine each grapple with savage malefactors intent on making their victims pay, they must race to stop another attack...