Case file · Series 23, Episode 3
A Grain of Truth
An organic bakery divides its village before a mass poisoning and two attacks make the dispute impossible to dismiss.
The 60-second case card
Should I watch this one?
A recognisable argument about development and food culture becomes a careful mystery about who is being protected—and from whom.
- Best for
- Artisan bakery · Village dispute · Poisoning
- Mood
- Classic
- Team
- DCI John Barnaby with DS Jamie Winter
- Spoiler guidance
- Read the premise freely; open the marked sections only after watching. This is not a complete content advisory.
Why it matters
A recognisable argument about development and food culture becomes a careful mystery about who is being protected—and from whom.
An organic bakery divides its village before a mass poisoning and two attacks make the dispute impossible to dismiss.
Tom and Chrissie Larkton have transformed the old mill into a fashionable organic bakery, attracting customers and resentment in equal measure. A threatening cake and a broken farming contract appear to be acts of protest until people at the village pub are dosed with a dangerous hallucinogen.
A local supplier is then murdered, an attendee at Tom's course is using a false name, and another man is lured to his death. Barnaby and Winter look past the public campaign against the bakery to determine why several victims pose a threat to the same person.
Break the seal: reveal the finding
The killer's choices are governed by a desire to shield someone from renewed harm, and the bakery feud provides a noisy public explanation for much more personal acts.
Open the full research dossierProduction, cast, forensics, deaths and filming evidence
Credits, context and checked facts
The episode file
- TV series
- Series 23
- Episode number
- Episode 3
- Written by
- Julia Gilbert
- Directed by
- Paul Gibson
- Listed transmission date(s)
- 26 December 2022 23 July 2024
- Reported filming period
- May–June 2022
- Detective
- DCI John Barnaby
- Partner
- DS Jamie Winter
- Pathologist
- Dr Fleur Perkins · Annette Badland
- Principal setting
- Lower Blissingham
- Casebook tone
- Classic
Check the credits, then follow the source trail for production and filming details. Counts below describe this archive’s records.
The fictional setting and the real filming sites are separate pieces of information. The location desk currently connects it to 1 broader filming area and 2 exact on-screen site identities.
Credits and archive connections
- Writer ledger7 episodes credited to Julia Gilbert
- Director ledger3 episodes directed by Paul Gibson
- Release positionCase 135 of 144
- Story characterClassic · Artisan bakery · Village dispute
- Location evidence2 exact screen-use matches
Mapledurham Watermill becomes Larkton's Mill and gives the bakery its working riverside exterior.
The Highway Inn at Checkendon appears as The Highway Inn in fictional Lower Blissingham.
Sources for the production file
Published episode chronology and credits ↗Official ITV programme page ↗Filming-location reference index ↗The chronology is the reference for the credits shown here. A programme homepage does not independently verify a filming date or every production detail. Where multiple transmission dates are listed, territory attribution needs checking. Story, teleplay and adaptation distinctions require the original credit wording; links to external synopses may reveal plot details.
Selected episode credits
Guest cast on file
Selected profiles and published cast-list entries. Database records are linked individually; this is not a full transcription or an independent check against the end credits.
Rebecca Night
Published cast record ↗Jo Martin
Published cast record ↗Robert Gilbert
Published cast record ↗Laila Rouass
Published cast record ↗Paul Chahidi
Published cast record ↗The performers behind this case
Core cast
Actor profiles for the detective, investigating partner and pathologist credited to this episode.
Neil Dudgeon
John Barnaby · Detective Chief InspectorAn English actor whose television work before Causton included Piece of Cake, The Mrs Bradley Mysteries, Messiah and the sitcom Life of Riley. He also appeared in Midsomer Murders years earlier as a different character in Garden of Death.
- Messiah
- Life of Riley
- The Mrs Bradley Mysteries
Nick Hendrix
Jamie Winter · Detective SergeantAn English actor trained at the University of Exeter and RADA. His theatre work includes the National Theatre, Old Vic and West End, while his screen credits include Black Mirror, Marcella, The Crown, Legend and Suffragette.
- Black Mirror
- Marcella
- The Crown
Annette Badland
Dr Fleur Perkins · Police pathologistAn award-winning English actor with an extensive career in theatre, television, film and radio. Her many recognisable roles include Doctor Who, EastEnders, Outlander, Bergerac and pub landlady Mae in Ted Lasso.
- Ted Lasso
- Doctor Who
- EastEnders
Portraits are used only where a reusable licence or public-domain release has been verified. Publicity stills and stock photographs are not copied into this independent guide.
Forensic desk
Dr Fleur Perkins
- Credit
- Resident pathologist
- Played by
- Annette Badland
Fleur pairs forensic certainty with dry humour and a magnificently low tolerance for Midsomer nonsense.
Meet the Casebook pathologists →Spoiler-controlled deaths desk
Deaths recorded in this case
2 source rows represent 2 people in the current ledger.
Break the seal: reveal the death ledger
- Nathan Duncroft
Murder · Other recorded death
- Ricky Naybury
Murder · Crushing
Real place → fictional identity
What was filmed where?
Mapledurham Watermill
Used as: The historic watermill appears as Larkton's Mill and its organic bakery.
Representative photograph of the real filming location; the exact camera angle or building may differ.The Highway Inn
Used as: The real pub keeps its name as The Highway Inn in fictional Lower Blissingham.
Building identities are cross-checked against the Casebook's published filming-location references. A named match describes the part used on screen, not the whole village and not necessarily an interior.
Wider filming areas