Host Nicki Chapman and series regular Bill Young delve into Dark Secrets in this episode of Midsomer Murders Mayhem. Barnaby and Jones have to work their way back to uncover the mystery that surrounds the murder of a nosy social services worker. A family's dark past is revealed as Barnaby seeks the truth about the death of two siblings decades before. 

Actor Neil Dudgeon, aka Tom Barnaby, discusses his experience taking over the role of the lead DCI from the formidable John Nettles. 

Nicki and Bill are joined by real-life former detective Malcolm Davies who critiques the handling of the fictional case, while Ashley Storrie hosts the quiz, challenging another set of international superfans.

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