Published in 1923, Agatha Christie’s The Murder on the Links is the second novel featuring the iconic Belgian detective Hercule Poirot. The story begins when Poirot and his companion, Captain Arthur Hastings, receive an urgent letter from a wealthy man named Paul Renauld, who fears his life is in danger because of a secret from his past. They rush to his villa in the north of France but arrive too late; Renauld has been found stabbed in the back and left in a freshly dug grave on an unfinished golf course. The investigation that follows forces Poirot to untangle a web of lies and mistaken identities to uncover the truth. A quintessential example of the Golden Age of Detective Fiction, the novel cemented the formula that would make Christie the world’s bestselling novelist, often called the “Queen of Crime.”

The novel explores several key themes, including The Unreliability of Appearances and Testimony and The Inescapable Consequences of Past Deceptions. A central element of the plot is The Importance of Psychology and Logic in Investigations, dramatized through the conflict between Poirot and the arrogant Parisian detective Giraud. While Giraud relies on modern forensics and tangible clues, Poirot uses his “little grey cells” to analyze human nature and uncover the logic behind the elaborate deceptions. The novel solidifies the dynamic between the brilliant Poirot and the more conventional narrator Hastings, a pairing that would become a hallmark of the series. The Murder on the Links was adapted in 1996 as a feature-length episode of the popular British television series Agatha Christie’s Poirot, starring David Suchet.

This guide is based on the 2019 Vintage Books edition.

Content Warning: The source text and this guide feature depictions of cursing, gender discrimination, mental illness, graphic violence, and death.

Plot Summary

The novel opens with Captain Arthur Hastings, a friend of Belgian detective Hercule Poirot, traveling by train from Paris to Calais. He shares a compartment with a bold young American-born acrobat who refuses to give her name, and he falls in love with her at first sight. She mentions searching for a missing sister and vanishes at Calais.

In London the next morning, Poirot opens an urgent letter from P. T. Renauld, a French-Canadian millionaire with ties to South America who lives at the Villa Geneviève in Merlinville-sur-Mer, France. Renauld fears for his life and begs for the detective’s immediate help. Poirot and Hastings depart at once, but upon arriving, they learn Renauld was murdered that morning.

Police commissary Lucien Bex, an old acquaintance of Poirot’s, relays the facts. The body was found around nine a.m., stabbed in the back and lying face down in a freshly dug grave on an unfinished golf course just outside the villa grounds. Renauld’s wife, Eloise, was discovered gagged and bound in her bedroom. The staff’s testimony reveals a conflict: The housekeeper claims a neighbor, Madame Daubreuil, regularly visited Renauld, while a maid insists the visitor that night was a younger, dark-haired Englishwoman. A threatening love letter signed “Bella” is found in Renauld’s overcoat. In Renauld’s study, Poirot discovers a fragment of a check made out to someone named Duveen and a long black hair on a leather chair. He comments on the length of Renauld’s overcoat, a detail whose significance he does not yet explain.

Mrs. Renauld describes being awakened by two masked, bearded men who bound her, forced her husband to leave, and demanded the location of a secret. She claims the clock struck two during the attack, but Poirot notices a wristwatch knocked from the dressing table is still running and set nearly two hours fast. When she identifies her husband’s body, she collapses in genuine grief, convincing Poirot she didn’t commit the murder.

Giraud, an arrogant detective from the Paris Sûreté (the French national criminal investigation division), finds South American cigarette stubs near the grave that differ from the ones Renauld smoked, leading him to suspect that the killers are foreigners. However, Poirot suspects this evidence was planted. Poirot focuses instead on footprints in the flower bed near the front door and a piece of lead piping near the grave, both of which he declares significant while everyone else dismisses them.

The police question Madame Daubreuil, suspecting that she and Renauld may have been having an affair because he deposited approximately 200,000 francs into her account, but she denies that they were in a relationship. Poirot deduces that she was blackmailing Renauld instead. Daubreuil’s daughter, Marthe, anxiously asks Poirot if anyone is suspected. Privately, Poirot confides to Hastings that he vaguely remembers Madame Daubreuil’s face from an old murder case. Gabriel Stonor, Renauld’s English secretary, confirms the payments represent blackmail. Stonor is surprised to learn that Renauld made a new will a fortnight ago leaving everything to his wife, effectively disinheriting their son Jack.

Jack had received a telegram from his father, urging him to go to Santiago on business. However, he learns of the murder before his ship sets sail and hurries home. The dark-haired young man looks so much like his father that Hastings briefly mistakes him for the dead man. Jack admits to a bitter quarrel with his father over his wish to marry Marthe.

The mysterious young woman Hastings met on the train arrives at the villa and expresses her curiosity about the crime. Wishing to impress her, Hastings takes her into the shed where the body and the murder weapon are being stowed. She pretends to faint and steals the dagger while he fetches her some water, though he doesn’t realize this at the time. When the weapon is discovered missing, he confesses that the shed was unlocked for about 20 minutes.

Poirot reveals his deductions to Hastings, saying that Mrs. Renauld’s story is fabricated and the crime occurred around midnight, not 2 am. The wristwatch was deliberately set forward and smashed to create a false timeline, giving someone on the last train an alibi. In addition, the flower bed under the bedroom window was smoothed with a rake to hide footprints. This suggests Mrs. Renauld is shielding someone.

Poirot departs for Paris and returns just as a second body, a stranger stabbed with the stolen dagger, is found in the shed. A doctor declares the man has been dead at least 48 hours, proving the stabbing was post-mortem. Poirot deduces the man died of an epileptic seizure, which the doctor confirms. Poirot then reveals that Madame Daubreuil is Madame Beroldy, the notorious defendant in a murder case 20 years earlier in which her husband was stabbed to death. She claimed masked intruders killed him, but the prosecution argued she conspired with her lover, a young lawyer named Georges Conneau. She was acquitted, and Conneau was never found.

Poirot searches Jack’s room and finds a photograph inscribed with a loving note from Bella. He confronts Jack about being in Merlinville the night of the murder, which Jack reluctantly confirms. Giraud arrests Jack. Poirot objects because it doesn’t make sense for Jack to dig a grave for the body if he wanted it to be discovered so he could claim his inheritance.

Poirot then guides Hastings to a crucial realization: Since Mrs. Renauld lied to protect her beloved husband, and her grief was genuine, her husband must be the fugitive Conneau. Paul Renauld fled to Canada after the Beroldy case, made a fortune in South America under a new identity, and returned to France, where Madame Daubreuil recognized and blackmailed him. To escape, Renauld planned to fake his own death using the body of an unhoused man who died of a seizure in his garden. He and his wife dressed the corpse in Renauld’s clothes and stabbed it post-mortem. They planned for Renauld to bury the body, bind his wife, and escape on the midnight train. The lead piping was meant to disfigure the unhoused man’s face beyond recognition. However, while digging the grave, Renauld was stabbed in the back by an unknown assailant who exploited the couple’s elaborate staging. Additionally, the love letter from Bella belonged to Jack, not his father; Jack had grabbed the wrong overcoat when rushing to catch the train to Paris.

Hastings accompanies Poirot back to England, where the detective discovers that Bella Duveen and her twin sister, Dulcie, are performers in a variety show. The woman Hastings met on the train is really Dulcie, but he mistakenly thinks that she’s Bella and is devastated, believing the girl he loves killed Renauld. Dulcie doesn’t correct this misconception because she isn’t sure that Hastings would extend her sister the same concern. She appears at his hotel and begs for his help, and Hastings aids her escape before Poirot can intervene. Back in France, Hastings fabricates an alibi for her. At the examining magistrate’s hearing, Jack refuses to defend himself. Then Bella enters and confesses to Renauld’s murder to save him.

A letter from Dulcie reveals the truth: Bella was the mysterious English visitor to Renauld. Dulcie followed her to Merlinville, recognized the dagger in the shed as one Jack had given Bella, and stole it to protect her sister. Bella and Jack each believed the other committed the murder, and each tried to take the blame.

Poirot arranges for Mrs. Renauld to publicly threaten to disinherit Jack, provoking the real killer. That night, Marthe breaks into Mrs. Renauld’s room with chloroform and morphine, intending to stage a suicide. Dulcie, who insisted on accompanying Poirot, overpowers Marthe, who dies after striking her head during the struggle.

Poirot explains that Marthe never loved Jack but sought his inheritance. She overheard Renauld’s escape plan, realized his death would make Jack a millionaire, and struck Renauld from behind while he dug the grave. The dagger Dulcie stole is confirmed as Marthe’s because Bella’s dagger was still in her possession, proving Bella never used hers. To commemorate his victory over Giraud, Poirot purchases a model of a foxhound, which he mockingly names after the Parisian detective. Jack prepares to leave for South America with his mother, and, at Poirot’s urging, resolves to ask Bella to join him. Madame Daubreuil disappears and is never found. Hastings and Dulcie are reunited, and the story closes with Hastings proposing to her in the garden of the Villa Geneviève.