The Last Devil to Die by Richard Osman: A Complete Companion Guide

⚠️ Spoiler Warning: This guide contains detailed spoilers for the entire novel. Proceed only if you've finished reading or are comfortable knowing the plot.

Quick Facts

Short Summary

Eighty‑year‑old antiques dealer Kuldesh Sharma is shot dead after being forced to accept a smuggled terracotta box containing heroin. The Thursday Murder Club – Elizabeth, Joyce, Ron, and Ibrahim – launch their own investigation, uncovering a web of deceit that includes a romance scam, art forgery, and a priceless ancient artifact. Meanwhile, Elizabeth’s husband Stephen, who suffers from dementia, reveals a hidden connection to the stolen drugs. As the body count rises, the club must confront grief, loyalty, and the question of justice versus the law. The truth leads to a shocking killer and a devilish final twist involving a six‑thousand‑year‑old “sin box.”

Full Summary

Prologue and Setup

On the night of 27th December, Kuldesh Sharma drives to a dark woodland. He has hidden a mysterious box and made two phone calls. As snow falls, a car arrives and a gunshot kills him instantly. This sets the central mystery.

The Thursday Murder Club Investigates

The Coopers Chase residents – Elizabeth (former MI6), Joyce (former nurse), Ron (former union activist), and Ibrahim (retired psychiatrist) – gather for a Boxing Day lunch. They meet new resident Mervyn Collins, who is being fleeced by an online “girlfriend” Tatiana – a classic romance scam. Meanwhile, drug trafficker Mitch Maxwell personally oversees a heroin shipment hidden inside a terracotta box. The box is forced on Kuldesh in his antiques shop by a Scouse man.

On New Year’s Day, police detectives Chris and Donna find Kuldesh’s body. The National Crime Agency (NCA) takes over the case, but the Thursday Murder Club decides to run a parallel inquiry. Elizabeth learns that Stephen may have been involved with Kuldesh’s secret.

Discovering the Heroin

Ibrahim visits Connie Johnson in prison to gather intel. Connie identifies the hitman as Dominic Holt, working for Mitch Maxwell. The club stakes out a warehouse but is confronted by Holt, who slashes their tyres. Mitch Maxwell later ambushes Ron at his flat, demanding the missing heroin. Elizabeth orchestrates a tense dinner with all suspects: Mitch, Luca Buttaci, Samantha Barnes, her partner Garth, and archaeologist Nina Mishra.

Stephen’s Dementia and Sacrifice

Elizabeth’s husband Stephen suffers from advanced dementia. He writes himself a letter to read aloud, diagnosing his own condition, and insists on moving to a care home. Later, Bogdan helps Stephen search for Snowy the fox, which they find dead in the snow. Stephen reveals he is not well and temporarily forgets Elizabeth.

Elizabeth arranges for Viktor to speak privately with Stephen. Stephen describes his mind as “circling like draining bathwater.” He admits his pain is immense. Elizabeth ultimately helps Stephen end his life at home, as they had agreed. Stephen injects himself and dies peacefully in her arms.

The Fox and the Allotment

While grieving, Elizabeth recalls Stephen’s talk of radishes and an allotment. She deduces that he and Kuldesh hid the heroin there. She, Bogdan, Joyce, and Ron dig near the radishes and unearth a small box packed with white powder. Pauline tastes it – it’s heroin.

Unmasking the Killer

The club sets a trap using the heroin. Garth, angry about his wife Samantha’s murder, confronts Luca Buttaci on a multi‑storey car park. Luca reveals he knew Samantha was dead – only the killer and police knew. Garth throws Luca off the roof, killing him. Garth then forces Mitch to drive to Coopers Chase.

Meanwhile, Joyce faces down a romance fraudster, Jeremmy, recovering Mervyn’s money. Garth and Mitch burst in demanding the heroin, but Joyce says the police have it. Garth reveals the real prize is not the heroin but the ancient box itself, worth tens of millions.

Elizabeth takes the box to Professor Jonjo Mellor. He confirms it is a 6,000‑year‑old Mesopotamian “sin box.” Elizabeth places Stephen’s ashes inside and plans to send it to Baghdad. During a fire alarm, the box is stolen – just as Elizabeth expected.

The Final Confrontation

Garth arranges to buy the box for five million pounds at a motorway service station. The seller arrives; Garth meets her. Elizabeth, Joyce, and Bogdan appear. The seller is Nina Mishra, who confesses to killing Kuldesh. She describes how she shot him through the car window after he trusted her. Garth hands over his phone as evidence and leaves for Spain. Nina is arrested.

Denouement

Chris and Donna record the confession. Jill Regan arrests Nina. Mitch Maxwell, desperate to find the box, climbs a rubbish tip in the rain and suffers a fatal heart attack. Connie Johnson reflects on her guilt for manipulating Ibrahim. Stephen’s ashes are flown to Baghdad in the box. Elizabeth plans to travel. Joyce meets new resident Edwin Mayhew. Mervyn gets his money back. The Thursday Murder Club looks to the future, carrying their losses with them.

Main Characters

• Elizabeth – Former MI6 officer; cunning leader of the club; fiercely protective of Stephen.
• Joyce – Former nurse; first‑person narrator; kind, perceptive, and increasingly takes charge.
• Ron – Former trade union activist; blunt, loyal, provides comic relief.
• Ibrahim – Retired psychiatrist; methodical; uses logic and therapy skills.
• Stephen – Elizabeth’s husband; suffers from dementia; hides knowledge of the heroin.
• Kuldesh Sharma – Murdered antiques dealer; forced to accept the terracotta box.

Themes

• Friendship and Loyalty – The club’s bond drives their investigation and supports each other through grief.
• Grief and Loss – Characters confront the deaths of loved ones; Stephen’s assisted suicide is a central emotional arc.
• Deception and Fraud – Romance scams, art forgery, and the heroin trade all involve lies and hidden motives.
• Mortality and Aging – The elderly protagonists face dementia, death, and the urgency of living purposefully.
• Justice vs. Law – The club operates outside official procedures, raising questions about vigilante justice.

Symbols

• The Terracotta / Ancient Box – A 6,000‑year‑old “sin box” that actually contains the heroin; its true value drives the plot.
• Heroin – Represents greed and criminal power, but is ultimately a misdirection for the box’s true worth.
• Snowy the Fox – A fox fed by Stephen and Elizabeth; its death mirrors Stephen’s decline and leads to the discovery of the heroin.
• The Allotment and Spade – Kuldesh’s allotment shed is where the heroin is hidden; the spade links Stephen to the crime.

Ending Explained

Read the full breakdown in our ending explained page.

Chapter-by-Chapter Breakdown

Frequently Asked Questions

1. Who killed Kuldesh Sharma?
   Nina Mishra, an archaeologist, shot him through the car window. She wanted the ancient box for herself to sell for millions.

2. What happened to Stephen?
   With Elizabeth’s help, Stephen ended his own life peacefully at home, having dementia and wanting to die with dignity.

3. What is the “terracotta box” really?
   It is a 6,000‑year‑old Mesopotamian sin box that originally contained heroin as a diversion. Its true art value is tens of millions.

4. Did Stephen hide the heroin?
   Yes. Elizabeth deduces that Stephen helped Kuldesh bury the heroin in an allotment shed on Boxing Day.

5. Who killed Dominic Holt?
   Connie Johnson ordered the hit via her contract killer Caroline.

6. Who killed Samantha Barnes?
   Connie Johnson also ordered Samantha’s murder. Garth escaped.

7. What happens to the box at the end?
   Elizabeth places Stephen’s ashes inside and sends it to Baghdad. The box is later stolen from the professor’s office – a planned move to catch one last “devil.”

8. Does the Thursday Murder Club continue?
   Yes. The club survives their grief and moves forward; Joyce even meets a new resident, Edwin Mayhew.

Further Resources

• Questions and Answers
• Quiz
• Essay Prompts
• Ending Explained