The Reverend Dodd, vicar of the quiet Cornish village of Boscawen, spends his evenings reading detective stories by the fireside - but heaven forbid that the shadow of any real crime should ever fall across his seaside parish. But the vicar's peace is shattered one stormy night when Julius Tregarthan, a secretive and ill-tempered magistrate, is found at his house in Boscawen with a bullet through his head. The local police inspector is baffled by the complete absence of clues.