In the strange, nearly-deserted village of Plumpton Bois, Mr Cyril Savage inherits the home of his wealthy and estranged Aunt. But before Savage has the chance to discover her fortune, he is struck dead in the cellar of this once grand country house.

The police are baffled and, unable to unearth a motive – let alone a killer, call for the assistance of Scotland Yard. Inspector Littlejohn and Inspector Cromwell arrive in Plumpton Bois and find the village, the family, and the house itself full of secrets.

The door to a locked room has been bashed open, Savage’s aunt is not nearly as rich as she seemed to be, and now another body has turned up on Littlejohn’s watch…

Intruder in the Dark was originally published in 1966.