Plot summary
Upon his return to England after his overseas job in the police, Luke Fitzwilliam shares a London-bound train carriage with Lavinia Pinkerton. She talks to him about her reason for travelling to Scotland Yard: she plans to report a serial killer in her village and tells him who was killed and who will next be killed – Amy Gibbs, Tommy Pierce, and Harry Carter have been killed; Dr John Humbleby will be the next victim. This woman reminds him of a favourite aunt, so he replies politely and recalls what she said.
Luke reads of Miss Pinkerton's death the next day, and then of the death of Dr Humbleby, who has died of septicaemia. Luke will not let this rest, and he travels to the village, Wychwood under Ashe, where a cousin of his good friend connects him to his cousin Bridget Conway.
Luke poses as an author researching material for a book on beliefs in witchcraft and superstition, as he investigates. He stays at the home of Gordon Ragg aka Lord Whitfield (Easterfield in the US edition), claiming to be a cousin of Bridget Conway, Whitfield's secretary and fiancée. He and Conway receive the assistance of Honoria Waynflete, a woman who, they believe, may know the person behind the deaths. He talks with villagers to learn the stories of the recent murders, including Mr Abbot, the solicitor who fired Tommy Pierce from his service; the Reverend Mr Wake, local rector; Mr Ellsworthy, an antique shop owner who appears to be mentally unstable; and Dr Thomas, Humbleby's younger partner.
Most people in the village view the series of deaths as accidents, not murders.
Luke believes Ellsworthy to be the killer because of his mental instability. Seeing Ellsworthy return home with blood on his hands at the summer solstice adds to this image. Later, Luke and Miss Waynflete witness Whitfield arguing with his chauffeur, Rivers, who had taken Whitfield's Rolls-Royce for a joyride.
Luke and Bridget realise that they are in love with each other, then they find Rivers dead, killed by a blow to the head. After dinner in Gordon’s home, Luke listens to Gordon tell the story of how anyone who insults or disrespects him is avenged. He lists all the murdered locals and their offence: Mrs Horton had argued with him, Tommy Pierce did mocking impressions of him, Harry Carter shouted at him while drunk, Amy Gibbs was impertinent to him, Humbleby disagreed with him on the village water supply, and Rivers used his car without permission and then spoke disrespectfully to him. All of them died soon afterwards. He believes this is divine justice.
Luke and Bridget decide to leave Gordon’s house. Luke goes off to meet with Superintendent Battle down from London to resolve this case, leaving Bridget. They will tell Gordon of their decision when Luke returns.
Bridget does not wait; she tells Gordon of her decision to break off her engagement with him while Luke is out.
Luke decides that Gordon is directly responsible for the deaths. Miss Waynflete confirms his suspicions. She tells him of how when they were younger, she had been engaged to marry Gordon. One evening, Whitfield killed her pet bird, with the appearance that he enjoyed doing it. She says she ended their engagement.
Bridget decides to stay at Honoria Waynflete's house, after asking Luke to tell her exactly what Miss Pinkerton told him. Bridget does not drink the tea that Miss Waynflete brings her, as she does not like tea in general.
Bridget and Honoria take a walk in the woods. Honoria reveals herself to be the murderer, as she holds a knife to add Bridget to her list of victims. She admits that she killed her own pet and Gordon ended their engagement. She vows revenge on Gordon after he returns as a wealthy man to the village.
Her plan was to set him up as obviously guilty for crimes he did not commit, that she commits. She encouraged him in the belief that God exacted retribution from those who disrespected him.
Honoria poisoned the tea for Lydia Horton. Honoria killed Amy by swapping the bottles around in the night and locking the door from the outside using pincers. She killed Carter by pushing him off the bridge on the day he had a row with Whitfield, and she likewise pushed Tommy Pierce out of the window while he was working in the library where she worked.
Honoria had seen that Lavinia Pinkerton realised she was the killer and that Humbleby would be her next victim. Honoria had followed Lavinia into London and then pushed her in front of a passing car. She then hoped to frame Gordon by telling a witness that she saw the registration number of his Rolls-Royce. After inviting Humbleby round to her house, she cut his hand with scissors. She then applied a dressing to the wound, a dressing with pus seeping from her cat's ear. After witnessing Rivers being sacked, Honoria hits him with a sandbag and caves his skull in with the stone pineapple.
Honoria does not know that Bridget did not drink the tea with a sleeping drug in it; Bridget pretends to be sleepy, then prods her to talk about herself, buying time and a full confession. Further, Honoria had arranged for Gordon to be seen walking alone through the area where Bridget's body will be. Instead, Bridget fights with Honoria. Bridget calls out to Luke for help and he hears her in time.
After a brief meeting with Mrs Humbleby, the doctor’s widow, Luke realises that Honoria may well be the murderer and runs to rescue Bridget. Miss Pinkerton had never said man or woman, simply referred to the murderer.
Superintendent Battle tells Luke and Bridget that Honoria Waynflete has lost her mind upon being arrested. Gordon cannot accept that it was not divine justice, and settles back into his bachelor life running local newspapers.
Bridget and Luke leave the village to live together as a married couple.
Literary significance and reception
The Times Literary Supplement of 10 June 1939 published a review of the book by Maurice Percy Ashley, together with And Death Came Too by Richard Hull which began "A week in which new novels by Mr Hull and Mrs Christie appear should be a red letter week for connoisseurs of detective fiction. One must, however, reluctantly confess that neither of them is fully up to standard."
After considering in isolation And Death Came Too, Ashley turned his attention to Murder Is Easy and started, "Mrs Christie has abandoned M. Hercule Poirot in her new novel, but it must be confessed that his understudy, Luke Fitzwilliam, a retired policeman from the Mayang States is singularly lacking in 'little grey matter.' Poirot may have recently become, with advancing years, a trifle staid, but absence makes the heart grow fonder of him." After outlining the basics of the plot and the romantic interests of the main character, Mr Ashley concluded, "He (Luke) is less effective a detective than as a lover, which is not surprising since neither he nor the reader is provided with any clear clues pointing to the fantastically successful murderer. The love interest scarcely compensates for the paucity of detection and the characters verge on caricature; nor is Fitzwilliam able to recapture vividly enough the circumstances of the earlier murders." [4]
In The New York Times Book Review for 24 September 1939, Kay Irvin said the book was "one of Agatha Christie's best mystery novels, a story fascinating in its plot, clever and lively in its characters and brilliant in its technique." She concluded, "The story's interest is unflagging, and the end brings excitement as well as surprise." [5]
William Blunt in The Observer of 4 June 1939 raised a question regarding Christie's abilities to write non-crime fiction, which demonstrates that her pen name identity of Mary Westmacott was not yet public knowledge: "I should hate to have to state on oath which I thought was Agatha Christie's best story, but I do think I can say that this is well up in the first six. The humour and humanity of its detail raise a question which only one person can give an answer. Agatha Christie has grown accustomed to working her embroidery on a background of black. Could she, or could she not, leave death and detection out, and embroider as well on green? I believe she is one of the few detective novelists who could. If she would let herself try, just for fun. I believe it would be very good fun for other people, too." [6]
E.R. Punshon in The Guardian 's issue of 11 July 1939 said that, "Readers may miss the almost supernatural cunning of Poirot, but then if Luke also depended on the famous 'little grey cells' he would be merely another Poirot instead of having his own blundering, straightforward, yet finally effective methods." Mr. Punshon summed up by saying that the story, "must be counted as yet another proof of Mrs Christie's inexhaustible ingenuity." [7]
Mary Dell of the Daily Mirror , wrote on 8 June 1939, "It'll keep you guessing will this latest book from the pen of one of the best thriller writers ever." [8]
An unnamed reviewer in the Toronto Daily Star of 2 December 1939 said, "An anemic thread of romance threatens to sever on occasion but the mystery is satisfying and full of suspense." [9]
Robert Barnard: "Archetypal Mayhem Parva story, with all the best ingredients: Cranford-style village with 'about six women to every man'; doctors, lawyers, retired colonels and antique dealers; suspicions of black magic; and, as optional extra ingredient, a memorably awful press lord. And of course a generous allowance of sharp old spinsters. Shorter than most on detection, perhaps because the detection is, until the end, basically amateur. One of the classics." [10]
