Hillmaston School has chosen The Mikado for their next school performance and, in recognition of her generous offer to finance the production, their meek and self-effacing arithmetic mistress is offered a key role. But when she disappears mid-way through the opening night performance and is later found dead, unconventional psychoanalyst Mrs Bradley is called in to investigate. To her surprise she soon discovers that the hapless teacher had quite a number of enemies -- all with a motive for murder...

Noel Wells, curate in the sleepy village of Saltmarsh, likes to spend his time dancing in the study with the vicar's niece until one day the vicar's unpleasant wife discovers her unmarried housemaid is pregnant and trouble begins. It is left to Noel to call for the help of sometime-detective and full-time Freudian Mrs Bradley, who sets out on an unnervingly unorthodox investigation into the mysterious pregnancy, an investigation that also takes in a smuggler, the village lunatic, a missing corpse, a public pillory, an exhumation and, of course, a murderer. Mrs. Bradley is easily one of the most memorable personalities in crime fiction and in this classic whodunit she proves that some English villages can be murderously peaceful.