Case file · Series 12, Episode 3 · Season 12, Episode 3

Secrets and Spies

A former agent is killed at a country house for retired spies, reviving a Cold War operation and the legend of a village beast.

The 60-second case card

Should I watch this one?

The case opens a rare window onto Tom Barnaby's own intelligence-service past without turning Midsomer into a conventional spy thriller.

Best for
Cold War · Former spies · Village beast
Mood
Eccentric
Team
DCI Tom 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

The case opens a rare window onto Tom Barnaby's own intelligence-service past without turning Midsomer into a conventional spy thriller.

Former secret agent Geoffrey Larkin is found with savage facial wounds while staying at Allenby House, a safe residence run by the Frazer family for retired spies. Local talk blames the Beast of Midsomer, but the victim's career points towards more human enemies.

A museum break-in, a cricket match and resistance from MI6 take Barnaby back to an operation in Cold War Berlin. Jones and Gail Stephens work the village evidence while Barnaby confronts colleagues who would prefer the old record to remain classified.

  • Cold War
  • Former spies
  • Village beast
Break the seal: reveal the finding

The beast imagery disguises a reckoning rooted in a Berlin operation. Barnaby reconstructs who was betrayed, then forces the present killer out from behind official secrecy.

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.

  1. Place

    How does Midsomer Parva shape what people say openly, delay, or leave unsaid?

  2. Theme

    Which details seem to carry more than one meaning, and what might be a red herring?

  3. Teamwork

    Compare how DCI Tom Barnaby and DS Ben Jones gather information: who watches the room, and who presses the conversation forward?

Browse all 100 observation cards →
More episode detailsProduction, cast, deaths and filming information

Credits, context and checked facts

Production and cast

TV series
Series 12
Episode number
Episode 3
Written by
Michael Aitkens
Directed by
Renny Rye
Listed transmission date(s)
7 July 2009 5 August 2009
Reported filming period
August–September 2008
Detective
DCI Tom Barnaby
Partner
DS Ben Jones
Pathologist
Dr George Bullard · Barry Jackson
Principal setting
Midsomer Parva
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 2 broader filming areas and 6 exact on-screen site identities.

Credits and archive connections

  • Writer credits9 episodes credited to Michael Aitkens
  • Director credits23 episodes directed by Renny Rye
  • Release positionCase 69 of 144
  • Story characterEccentric · Cold War · Former spies
  • Location evidence6 exact screen-use matches
Barnaby's secret past

The story confirms that Tom Barnaby previously performed intelligence work, giving him a personal connection to the retired agents.

Gail Stephens promoted

Kirsty Dillon's Gail Stephens becomes a detective constable in this episode.

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

Secrets and Spies cast

These selected cast entries link to their published profiles. They do not include every name shown in the end credits.

Actor Peter Davison in 2016
Photo: Florida Supercon · CC BY 2.0 · Source · displayed with a layout crop
Played Nicky Frazer

Peter Davison

Davison plays Nicky Frazer in Secrets and Spies, an episode that reaches into an intelligence-service past. He returned much later as Archie Pollock in Lawn of the Dead, a different Midsomer character.

Open actor profile →

The performers behind this case

Core cast

Actor profiles for the detective, investigating partner and pathologist credited to this episode.

Actor John Nettles at a public event in 2013
Photo: Man vyi · Public domain · Source · displayed with a layout crop
Lead detective

John Nettles

Tom Barnaby · Detective Chief Inspector

An English actor, author and narrator who was already a household name as Jersey detective Jim Bergerac. After Bergerac he spent five seasons with the Royal Shakespeare Company and later returned to television drama in Poldark.

  • Bergerac
  • Poldark
  • Royal Shakespeare Company
No freely reusable portrait located. A rights-cleared photograph can be added later.
Investigating partner

Jason Hughes

Ben Jones · Police Constable · Detective Sergeant · Inspector

A 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
No freely reusable portrait located. A rights-cleared photograph can be added later.
Forensic support

Barry Jackson

Dr George Bullard · Police pathologist

An English stage and screen character actor whose career lasted more than five decades. His credits ranged from the landmark television play Cathy Come Home to Doctor Who, Barry Lyndon and many familiar British television dramas.

  • Cathy Come Home
  • Doctor Who
  • Barry Lyndon

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 George Bullard

Credit
Resident pathologist
Played by
Barry Jackson

Causton's long-serving pathologist is professionally unflappable, quietly witty and an old friend of Tom Barnaby.

Meet the Casebook pathologists →

Spoiler-controlled deaths desk

Deaths recorded in this case

2 people die in this case, according to the linked death record.

Break the seal: reveal the death ledger
  1. Geoffrey Larkin

    Murder · Stabbing or impalement · historical or before the main case

    Performer check
  2. Nicky Frazer

    Murder · Stabbing or impalement · historical or before the main case

    Performer check
    • Nicky Frazer: Peter DavisonThe body-count ledger prints ‘Nicky Fraser’; the published cast record supports ‘Nicky Frazer’, used here.
Break a second seal: reveal the verified killer
Series 12 · episode 3 · checked 15 September 2026

Verified killer

Jenny Frazer

Jenny killed Geoffrey Larkin and her husband Nicky Frazer after learning that Nicky and Sir Malcolm Frazer had betrayed the Cold War escape operation and concealed Jimmy Wells's survival. Her later attempt to cremate Sir Malcolm alive was interrupted, so he is not added as a third victim.

Verified motive

Jenny took revenge after the Wolfman file revealed that Nicky and Malcolm had betrayed the Berlin escape operation, lied that Jimmy was dead and left her in a life she described as frustration and compromise. She killed Geoffrey because he knew the file's contents, and expected that removing Nicky and Malcolm would leave her Allenby House and a future with Jimmy.

Verified important clue

Archive case 69 · checked 16 September 2026The Wolfman file on the Berlin escape

The secret record shows that Nicky and Malcolm betrayed the operation and framed Jimmy Wells for the leak, giving Geoffrey dangerous knowledge and exposing the decades-old deception behind Jenny's revenge on the two men.

Verified decisive clue

Archive case 69 · checked 17 September 2026The Wolfman file on the Berlin escape

The secret record proves that Nicky and Malcolm betrayed the operation, framed Jimmy Wells and concealed his survival. Geoffrey's knowledge of that file explains his murder and exposes Jenny's revenge against Nicky and Malcolm, while Malcolm's interrupted cremation remains an attempted third killing.

Verified death and discovery order

Archive case 69 · checked 16 September 2026
  1. discovery
    The Wolfman file reopens the Berlin betrayal

    The secret record reveals that Nicky and Malcolm betrayed the escape operation and lied to Jenny that Jimmy Wells had died.

  2. death
    Geoffrey Larkin is killed

    Jenny kills Geoffrey because he has found and understood the file that exposes the old operation.

  3. discovery
    Jimmy's survival overturns the old account

    Jenny learns that her former lover is alive and that the men she trusted shaped her later life through deception.

  4. death
    Nicky Frazer is killed

    Jenny takes revenge on her husband for the betrayal and for sustaining the lie about Jimmy.

  5. discovery
    The security system points to Jenny

    Her control of Allenby House's cameras and practical systems explains how the killings were arranged and concealed.

  6. discovery
    Malcolm's cremation is prevented

    Police rescue Sir Malcolm from the coffin, leaving Jenny with two completed murders and one interrupted third attack.

Search the complete deaths index →

Real place → fictional identity

What was filmed where?

Beaconsfield Old Town war memorial and historic street buildings
Beaconsfield, Buckinghamshire

The Reading Room

Used as: The exterior becomes Causton Museum.

Representative photograph of the real filming location; the exact camera angle or building may differ.
Open the Beaconsfield location file →
Hedgerley, Buckinghamshire

The White Horse

Used as: The pub becomes The Allenby Arms and its garden shed becomes Seth's Shack.

London

Kensal Green Cemetery

Used as: The cemetery supplies the opening and Cold War flashback scenes set in East Berlin.

The red-brick Thame Town Hall and clock tower
Thame, Oxfordshire

Thame Museum

Used as: The museum interior is used for Causton Museum.

Representative photograph of the real filming location; the exact camera angle or building may differ.
Open the Thame location file →
Wormsley, Buckinghamshire

Wormsley Estate Cricket Ground

Used as: The ground and pavilion host the Midsomer Parva cricket match.

Sources support the listed site uses; they do not establish every filming location in an episode.

Wider filming areas

Places connected to this file