Midsomer Murders returns to our screens this week with brand new episode A Grain of Truth, which follows on from The Debt of Lies.

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Barnaby and Winter's latest investigation revolves around a bakery, a dangerous hallucinogenic and the murder of a farmer.

Joining the guest cast is Doctor Who's Jo Martin, This Country's Paul Chahidi and Footballers' Wives star Laila Rouass, among others.

But when can you watch the episode? Read on to find out everything you need to know about Midsomer Murders: A Grain of Truth.

When is Midsomer Murders on TV?

Laila Rouass smiling at the camera.
Laila Rouass. ITV

Midsomer Murders returns to screens on Tuesday 23rd July at 8pm on ITV1.

What is A Grain of Truth about?

The official synopsis for the episode reads: "The superstar couple of the baking world have recently revamped her family's beautiful old water mill Larkton's, which has brought the couple huge success and a dedicated online following."

But its popularity "has caused resentment in Lower Blissingham. Many of the old village businesses are now struggling, traffic has increased, and rumour has it that Larkton's have plans to expand".

The backlash continues to escalate "when locals boycott the Larkton's attempt to build bridges with the village" – and in a sinister turn, some rolls from the bakery are laced with poison followed by the murder of a farmer.

"Can Barnaby steer through the lies to catch the killer before it is too late?"

Midsomer Murders stars

Fiona Dolman, Neil Dudgeon and Isabel Shaw in Midsomer Murders sitting on a bench smiling into camera
Fiona Dolman, Neil Dudgeon and Isabel Shaw in Midsomer Murders. ITV

Neil Dudgeon returns as DCI John Barnaby, with Nick Hendrix by his side as DS Jamie Winter.

Fiona Dolman will also return as John's wife, Sarah Barnaby, as well as Paddy the dog – the family's "faithful canine companion".

In season 20, EastEnders' Annette Badland joined the team as "formidable" new pathologist Dr Fleur Perkins, replacing pathologist Dr Kam Karimore (Manjinder Virk), who moved to Canada at the end of season 19. Badland remains a key part of the cast.

There's also John and Sarah's daughter Betty, played by Isabel Shaw.

Midsomer Murders guest stars

Guest stars for the episode include:

  • Jo Martin (Doctor Who, Holby)
  • Robert Gilbert (Killing Eve, Big Boys)
  • Paul Chahidi (This Country)
  • Martin Trenaman (Never Mind the Buzzcocks)
  • Laila Rouass (Footballers' Wives)

Midsomer Murders returns to screens on Tuesday 23rd July at 8pm on ITV1.

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Check out more of our Drama coverage or visit our TV Guide and Streaming Guide to find out what's on. For more from the biggest stars in TV, listen to The Radio Times Podcast.

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