Su protagonista, hasta el año 2011, era el inspector jefe Tom Barnaby (John Nettles), que trabajaba para Caustron CID; más tarde, fue reemplazado por el actor Neil Dudgeon, que interpreta a un primo menor de Tom, John Barnaby. En cada episodio, Barnaby investiga uno de los numerosos asesinatos que ocurren en el condado ficticio de Midsomer, acompañado por un sargento, que fue cambiando durante la historia del programa: Gavin Troy (Daniel Casey), Dan Scott (John Hopkins) y Ben Jones (Jason Hughes).
The Ghost of Causton Abbey (Episodio 1) 5.4
Fecha de emisión: 2019-03-10
Duración: 90 min
Sinopsis: Causton is buzzing at the opening of a new brewery on the site of a famously cursed Abbey. But excitement turns to fear when a man is found boiled to death in one of the vats. DCI Barnaby and DS Winter are puzzled; could this really be about beer?
Death of the Small Coppers (Episodio 2) 5.4
Fecha de emisión: 2019-03-17
Duración: 90 min
Sinopsis: A butterfly collector is found pinned to a wall like one of his specimens.
Drawing Dead (Episodio 3) 6.3
Fecha de emisión: 2019-05-19
Duración: 90 min
Sinopsis: Carver Valley’s comic festival is in full swing when the village is shocked by the murder of a former supermodel. With a scathing comic shaming several villagers as the only lead, Barnaby and Winter are left trying to separate fact from fiction.
The Lions of Causton (Episodio 4) 6.1
Fecha de emisión: 2019-08-26
Duración: 90 min
Sinopsis: Barnaby gets to relive his former sporting glory when a death at the local Rugby Club sends Barnaby and Winter into a muddle of rucks, grudges, romance… and artisanal chocolates?
Till Death Do Us Part (Episodio 5) 8.4
Fecha de emisión: 2019-11-07
Duración: 90 min
Sinopsis: Barnaby is less than impressed when Sarah drags him to a wedding. But things go from bad to worse when Barnaby must unveil a murderer with an apparent penchant for local brides.
Send in the Clowns (Episodio 6) 5.9
Fecha de emisión: 2019-11-07
Duración: 90 min
Sinopsis: Things take a gruesome turn when Ferabbees Circus comes to town, bringing with it a chain of sinister clown sightings, threatening notes and deathly dangerous circus acts. Barnaby will have to face up to his fears in order to solve the case.