Rex Fortescue, king of a financial empire, was sipping tea in his "counting house" when he suffered an agonizing and sudden death. On later inspection, the pockets of the deceased were found to contain traces of cereals. Yet, it was the incident in the parlor that confirmed Miss Marple's suspicion that here she was looking at a case of crime by rhyme....

Lymstock is a town with more than its share of shameful secrets - a town where even a sudden outbreak of anonymous hate mail causes only a minor stir. But all that changes when one of the recipients, Mrs. Symmington, commits suicide. Her final note says "I can’t go on", but Miss Marple questions the coroner's verdict of suicide. Soon nobody is sure of anyone - as secrets stop being shameful and start becoming deadly.

The villagers of Chipping Cleghorn, including Jane Marple, are agog with curiosity over an advertisement in the local gazette that read: "A murder is announced and will take place on Friday October 29th, at Little Paddocks at 6:30 p.m." Unable to resist the mysterious invitation, a crowd begins to gather at Little Paddocks at the appointed time when, without warning, the lights go out....

In utter disbelief, Miss Marple read the letter addressed to her from the recently deceased Mr. Rafiel...an acquaintance she had met briefly on her travels. He had left instructions for her to investigate a crime after his death. The only problem was, he had failed to tell her who was involved or where and when the crime had been committed. It was most intriguing. Soon she is faced with a new crime...the ultimate crime...murder. It seems someone is adamant that past evils remained buried....

"Anyone who murdered Colonel Protheroe," declared the parson, brandishing a carving knife above a joint of roast beef, "would be doing the world at large a favor!" It was a careless remark for a man of the cloth. And one which was to come back and haunt the clergyman just a few hours later - when the Colonel is found shot dead in the clergyman's study. But as Miss Marple soon discovers, the whole village seems to have had a motive to kill Colonel Protheroe.