top of page

Murder on the Orient Express

Agatha Christie

Engross yourself in the intricate and suspenseful world of Agatha Christie's 'Murder on the Orient Express' with this essential study guide. Whether you're a fan of classic detective fiction or simply searching for your next engrossing read, this book is a must for your collection. In this guide, we'll explore the intricate details and themes that make 'Murder on the Orient Express' an unforgettable literary experience.


From its masterful plot twists to its richly developed characters, 'Murder on the Orient Express' takes readers on a journey through one of the most famous detective stories ever written. The novel offers insights into justice, morality, and the complexities of human nature.


Allow this study guide to deepen your understanding of Christie's storytelling techniques, the historical context of the book, and the profound themes conveyed throughout the pages. Whether you're a student seeking analysis for a class assignment or a passionate reader wanting to explore this renowned work in more detail, this guide will enrich your experience and shed light on all the nuances hidden within 'Murder on the Orient Express.'

Summary of the Book

'Murder on the Orient Express' by Agatha Christie is a detective novel featuring the famous Belgian detective Hercule Poirot. The story begins with Poirot boarding the luxurious Orient Express in Istanbul, intending to return to London. During the journey, an American passenger named Samuel Ratchett approaches Poirot, requesting his protection, as he believes his life is in danger. Poirot declines the offer.


That night, the train is halted by a snowdrift, and Ratchett is found murdered in his compartment, having been stabbed multiple times. Poirot is asked to investigate the crime and quickly discovers that each passenger on the train has a potential motive for killing Ratchett, whose real name is revealed to be Cassetti, a notorious gangster responsible for a heinous crime years earlier.


As Poirot delves deeper into the investigation, he uncovers a complex web of lies, secrets, and hidden identities. The novel builds to a thrilling climax as Poirot gathers all the passengers and presents two possible solutions to the murder. The first suggests that an unknown outsider boarded the train and committed the crime. The second, more controversial solution, reveals that all the passengers collaborated to kill Ratchett as an act of collective justice for his past crimes.


Poirot leaves the decision of which solution to present to the authorities in the hands of the train's director, M. Bouc, and Dr. Constantine. The novel ends on an ambiguous note, with the moral implications of the passengers' actions left open to interpretation.

Key Themes & Motifs

A key theme present in 'Murder on the Orient Express' is justice and the moral complexities surrounding it. The novel explores the idea of vigilante justice and whether it is ever justified to take the law into one's own hands. The passengers' collective decision to murder Ratchett raises questions about morality, retribution, and the legal system.

Another prominent theme is the concept of identity and disguise. Many characters on the train are not who they initially appear to be, and their true identities are gradually revealed as the investigation progresses. This theme highlights the deceptive nature of appearances and the lengths to which people will go to conceal their true selves.

The motif of confinement is significant throughout the novel. The isolated setting of the train, trapped by the snowdrift, creates a claustrophobic atmosphere that heightens the tension and suspense. The confinement forces the characters to confront their actions and motives, and it limits the possible solutions to the crime.

Additionally, the book delves into themes of loyalty and betrayal. The relationships between the passengers and their connections to Ratchett/Cassetti are marked by a complex web of loyalties and betrayals. The novel explores how these relationships influence the characters' actions and the ultimate resolution of the murder.

Overall, 'Murder on the Orient Express' is a richly layered novel that delves into the complexities of justice, identity, and human nature. Christie's handling of these themes and motifs creates a deeply resonant and thought-provoking work of literature.

Analysis of Main Characters

Key characters in 'Murder on the Orient Express' are Hercule Poirot, Samuel Ratchett/Cassetti, M. Bouc, Dr. Constantine, and the various passengers on the train, whose experiences and interactions drive the novel's narrative.

Hercule Poirot is the brilliant Belgian detective known for his keen observational skills and methodical approach to solving crimes. Poirot's character is defined by his intelligence, attention to detail, and moral integrity. His investigation into Ratchett's murder showcases his ability to unravel complex mysteries and his commitment to uncovering the truth.

Samuel Ratchett, whose real name is revealed to be Cassetti, is the murder victim. A notorious gangster with a dark past, Cassetti is responsible for the kidnapping and murder of a young girl. His character serves as the catalyst for the events of the novel and the moral dilemmas faced by the other characters.

M. Bouc, the director of the train company and a friend of Poirot, assists in the investigation. His character provides a contrast to Poirot's methodical approach, often expressing surprise and skepticism at Poirot's deductions. Bouc's reactions and interactions with Poirot add depth to the narrative and highlight the complexities of the investigation.

Dr. Constantine, the train's doctor, also assists Poirot in the investigation. His medical expertise provides important insights into the nature of Ratchett's injuries and the circumstances of his death. Dr. Constantine's character adds a scientific perspective to the investigation and underscores the collaborative nature of the detective work.

The passengers on the train, including Mary Debenham, Colonel Arbuthnot, Princess Dragomiroff, and others, each have their own secrets and connections to Ratchett/Cassetti. Their interactions with Poirot and the gradual revelation of their true identities create a dynamic and engaging narrative. The complexity of these characters and their motivations adds depth to the novel's exploration of justice and morality.

Setting & Social Context

'Murder on the Orient Express' is set on the luxurious Orient Express train traveling from Istanbul to Calais. The setting provides a confined and isolated environment that heightens the tension and suspense of the narrative. The train's opulent and international atmosphere reflects the glamour and sophistication of the interwar period.

The historical context of the book highlights the social and cultural changes of the early 20th century, including the impact of World War I and the shifting dynamics of European society. The diverse backgrounds and nationalities of the passengers reflect the cosmopolitan nature of the time and add complexity to the narrative.

Christie's ability to create a detailed and immersive setting allows readers to engage with the world of 'Murder on the Orient Express' and the experiences of its inhabitants. The setting and historical context of the novel provide a rich and evocative backdrop for exploring its themes and motifs.

Writing Style & Narrative Techniques

Agatha Christie's use of language and narrative techniques to create a compelling and suspenseful story. Christie's writing is characterized by its clear and concise prose, vivid descriptions, and meticulous attention to detail.

The novel is narrated in the third person, providing an objective perspective on the events and characters. This narrative technique allows readers to observe Poirot's investigation and the unfolding mystery from a distance, while still engaging with the characters' thoughts and emotions.

Christie's prose is both accessible and evocative, making the novel appealing to a wide range of readers. The use of dialogue and detailed descriptions brings the characters and settings to life, while the carefully constructed plot keeps readers engaged and guessing until the end.

The themes of justice, identity, and morality are woven throughout the narrative, with Christie skillfully balancing moments of tension and introspection. Her ability to create a rich and layered story that resonates on both an emotional and intellectual level contributes to the enduring appeal of 'Murder on the Orient Express.'

Important Quotes & Analysis


  • "The impossible could not have happened, therefore the impossible must be possible in spite of appearances." - Poirot's reflection on the nature of the mystery highlights his logical and methodical approach to solving crimes.


  • "I have been thinking...it is not easy to be a murderer, eh?" - Poirot's observation underscores the moral complexities and psychological burden of committing murder.


  • "The train is a small world in itself, just as this country is a large world in itself." - This quote reflects the motif of confinement and the microcosm of society represented by the train.


  • "Justice has been done." - Poirot's final statement about the murder reveals his complex understanding of justice and morality.


  • "If you confront anyone who has lied with the truth, he will usually admit it—often out of sheer surprise." -Poirot's insight into human nature and deception underscores his keen observational skills.


These quotes and many others throughout the book serve to highlight the depth and emotional resonance of Christie's characters and their experiences. By examining these significant passages, readers can gain a deeper understanding of the book's core ideas and the ways in which they resonate with themes of justice, identity, and morality.

Conclusion & Final Thoughts

'Murder on the Orient Express' by Agatha Christie is a captivating and profoundly moving work of literature that has left an indelible mark on readers around the world. Through its intricate plot, richly developed characters, and masterful exploration of universal themes, the novel has cemented its place as a cornerstone of detective fiction.

The novel's ability to blend emotional resonance with incisive social critique, along with its insightful portrayal of justice and morality, resonates deeply with audiences. Christie's skillful storytelling and the enduring appeal of the characters and themes create a literary experience that is both intellectually and emotionally engaging.

'Murder on the Orient Express' is more than just a detective novel; it is a poignant exploration of the human experience, the complexities of justice, and the enduring power of truth. The novel's enduring popularity and critical acclaim are a testament to its ability to captivate and move readers, leaving a lasting impression on their hearts and minds.

bottom of page