Case file · Series 14, Episode 5 · Season 14, Episode 5
The Sleeper Under the Hill
A farmer's body at an ancient stone circle appears to confirm the worst suspicions about a local Druid group.
The 60-second case card
Should I watch this one?
Ritual imagery and an archaeological treasure hunt sit over a case whose strongest manipulation is thoroughly modern.
- Best for
- Stone circle · Druids · Buried treasure
- Mood
- Eccentric
- Team
- DCI John Barnaby with DS Ben Jones
- Spoiler guidance
- Read the premise freely; open the marked sections only after watching. Check the linked provider advisory for further viewing information.
Why it matters
Ritual imagery and an archaeological treasure hunt sit over a case whose strongest manipulation is thoroughly modern.
Farmer Alex Preston is found dead at the centre of Crowcall stone circle shortly before the spring equinox. He had planned to plough the meadow, bringing him into open conflict with the New Dawn Druids who regard the site as sacred.
When a member of the Druid group is also killed, Barnaby looks beyond the apparent religious feud. Maps pointing towards Anglo-Saxon treasure, a valuable painting and tensions within the police investigation redirect the case towards people who know how to turn belief into leverage.
Break the seal: reveal the finding
The Druid conflict is exploited as camouflage. The maps, treasure and painting reveal a manipulator who has arranged both the crimes and the suspicions surrounding them.
Spoiler-safe viewing companion
Three questions to carry into the episode
Use these spoiler-safe prompts to notice the setting, the investigation and the details that may matter.
- Place
How does Midsomer Mow shape what people say openly, delay, or leave unsaid?
- Theme
Which details seem to carry more than one meaning, and what might be a red herring?
- Teamwork
Compare how DCI John Barnaby and DS Ben Jones gather information: who watches the room, and who presses the conversation forward?
More episode detailsProduction, cast, deaths and filming information
Credits, context and checked facts
Production and cast
- TV series
- Series 14
- Episode number
- Episode 5
- Written by
- David Lawrence
- Directed by
- Nick Laughland
- Listed transmission date(s)
- 21 September 2011
- Reported filming period
- March–April 2011
- Detective
- DCI John Barnaby
- Partner
- DS Ben Jones
- Pathologist
- Dr Kate Wilding · Tamzin Malleson
- Principal setting
- Midsomer Mow
- Casebook tone
- Eccentric
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 credits5 episodes credited to David Lawrence
- Director credits9 episodes directed by Nick Laughland
- Release positionCase 86 of 144
- Story characterEccentric · Stone circle · Druids
- Location evidence2 exact screen-use matches
Tamzin Malleson makes her first appearance as Dr Kate Wilding, the pathologist who succeeds George Bullard.
The inquiry deliberately places Barnaby and Jones on opposing interpretations before the evidence brings them back together.
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
The Sleeper Under the Hill cast
These selected cast entries link to their published profiles. They do not include every name shown in the end credits.
Fiona Dolman
Susan Brown
Claudia Harrison
Lee Ross
Colin Tarrant
Alan Williams
Noah Huntley
Robert Pugh
Justin Shevlin
Richard Leaf
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
Jason Hughes
Ben Jones · Police Constable · Detective Sergeant · InspectorA Welsh actor who first became widely known as Warren Jones in the BBC drama This Life. His later television work includes Marcella and The Pact, alongside substantial theatre work at venues including the Donmar Warehouse and Royal Court.
- This Life
- Marcella
- The Pact
Tamzin Malleson
Dr Kate Wilding · Police pathologistAn English actor whose best-known television work includes Dangerfield, Teachers, the medical drama Bodies and Unforgotten. She has also appeared in Poirot, Marcella and A Touch of Frost.
- Teachers
- Bodies
- Unforgotten
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 Kate Wilding
- Credit
- Resident pathologist
- Played by
- Tamzin Malleson
Bullard's assured, no-nonsense successor combines forensic authority with a more informal chemistry around the John Barnaby team.
Meet the Casebook pathologists →Spoiler-controlled deaths desk
Deaths recorded in this case
3 people die in this case, according to the linked death record.
Break the seal: reveal the death ledger
- Alex Preston
Murder · Blunt force
Performer check- Alex Preston: Justin Shevlin
- Leticia Clifford
Murder · Stabbing or impalement
Performer check- Leticia Clifford: Susan Brown
- Sgt. Trevor Gibson
Murder · Drowning
Performer check- Sgt. Trevor Gibson: Lee Ross
Break a second seal: reveal the verified killer
Verified killers
Caradoc Singer · Sgt. Trevor GibsonSinger manipulated Gibson into killing Alex Preston and Leticia Clifford and staging both deaths to implicate the Druids while they concealed the Saxon treasure. Singer then killed Gibson when he tried to flee; Singer's instigation and Gibson's physical killings remain distinct.
Verified motive
Singer's compulsion to possess the Gorse Meadow Saxon treasure drove the scheme: Alex wanted to report the find lawfully and Leticia's investigation threatened its concealment. Singer used Gibson to remove them and frame the Druids, then killed Gibson when his accomplice tried to flee and could expose the collection and murders.
Verified important clue
Archive case 86 · checked 16 September 2026The hidden room containing Singer's art collectionThe different room visible in Singer's own recorded tour reveals a concealed gallery of valuable works and exposes his supposed poverty as a cover; the collection supplies the ownership obsession behind his pursuit of the Saxon treasure and his manipulation of Gibson, while the staged Awen brooch keeps their roles distinct.
Verified decisive clue
Archive case 86 · checked 17 September 2026The hidden room containing Singer's art collectionThe different room visible in Singer's recorded tour reveals a concealed gallery of valuable works and exposes his supposed poverty as a cover. The collection explains his obsession with the Saxon treasure and manipulation of Gibson, preserving Singer as instigator, Gibson as the first two murders' physical killer and Singer as Gibson's killer.
Verified death and discovery order
Archive case 86 · checked 16 September 2026- discoveryThe Saxon treasure is found
The Gorse Meadow find creates Singer's determination to possess the treasure and Alex Preston's intention to report it lawfully.
- deathAlex Preston is killed
Singer manipulates Sgt. Gibson into killing Alex before the farmer can report the find and disrupt its concealment.
- discoveryThe Druids are framed
Ritual staging at the stone circle directs suspicion towards the New Dawn group and away from the treasure scheme.
- deathLeticia Clifford is killed
Gibson kills Leticia under Singer's direction when her investigation threatens to expose the hidden collection.
- discoveryGibson tries to flee
The physical killer attempts to leave as the maps, painting and treasure begin to reveal Singer's manipulation.
- deathSinger kills Gibson
Singer removes his accomplice before he can expose the scheme, distinguishing Singer's instigation and final killing from Gibson's two murders.
Real place → fictional identity
What was filmed where?
Village house
Used as: A private house represents Caradoc Singer's home.
Representative photograph of the real filming location; the exact camera angle or building may differ.Village building
Used as: The building is dressed as Midsomer Mow Police Station.
Representative photograph of the real filming location; the exact camera angle or building may differ.Sources support the listed site uses; they do not establish every filming location in an episode.
Wider filming areas