Andrew Basnett, retired botany professor, accompanies an old friend, whose sister has received a blackmail letter, to her home in a Berkshire village. The letter had obviously been put in the wrong envelope, but it seems to indicate that a murder has been committed in Lindleham, where, strangely, several people are missing.
But as Andrew quietly investigates the neighbours, the realisation dawns that his friends, too, have something to hide.
But as Andrew quietly investigates the neighbours, the realisation dawns that his friends, too, have something to hide.