Complete released-series file · 2024
Series 23
4 feature-length cases from the John Barnaby era, led by DCI John Barnaby with DS Jamie Winter across the run.

Episodes 1–4
Year-level chronology
Principal fictional places
Expanded case files
Before you open the folder
What defines Series 23?
This run sits in the John Barnaby period and contains 4 cases. Its archive labels lean eccentric, with 2 cases carrying that tone.
- Best entry point
- The Blacktrees Prophecy
- Opening case
- The Blacktrees Prophecy
- Final case
- Dressed to Kill
- Recurring settings
- Each principal setting appears once
Archive highlights
Three ways into Series 23
Editorial signposts drawn from the Casebook catalogue—not a claim that every murder needs a podium.
The Blacktrees Prophecy
A false missile warning sends a survivalist into his bunker, where the apocalypse fails to arrive but murder does.
Episode 1 →Casebook focus · EccentricThe Blacktrees Prophecy
A prepper community built to survive global catastrophe proves much less prepared for mistrust inside its own village.
Open the case →Filming trailThe Debt of Lies
1 broader filming areas are already connected to this file.
Follow the places →Who works these cases
Core cast in Series 23
Every lead detective, investigating partner and credited on-screen pathologist represented in this series.
Neil Dudgeon
John Barnaby · 4 casesAn 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.
Open actor profile →Nick Hendrix
Jamie Winter · 4 casesAn 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.
Open actor profile →
Annette Badland
Dr Fleur Perkins · 4 casesAn 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.
Open actor profile →Complete episode ledger
Every Series 23 case
4 expanded dossiers and 0 concise catalogue records, all linked in broadcast order.
- Episode01
2024 · Blacktrees-on-Marsh
The Blacktrees Prophecy
A false missile warning sends a survivalist into his bunker, where the apocalypse fails to arrive but murder does.
- Episode02
2024 · Challis Court
The Debt of Lies
The death of a retiring senior officer leads Barnaby into an elegant community where former police colleagues share one old secret.
- Episode03
2024 · Lower Blissingham
A Grain of Truth
An organic bakery divides its village before a mass poisoning and two attacks make the dispute impossible to dismiss.
- Episode04
2024 · Elverton-cum-Latterly
Dressed to Kill
Opposition to a charity drag show appears to explain a murder, until the performers and detectives uncover a more private history.