The series adapts Anthony Horowitz's novel of the same name, with Horowitz himself brought on to write the script.

Plans to adapt the novel were first announced in July 2020, with PBS's Masterpiece producing a six-part drama series alongside Jill Green and Eleventh Hour Films.

Timothy Spall was originally cast to play detective Atticus Pünd but withdrew due to scheduling issues, leading to Tim McMullan taking on the role.

The sequel novel Moonflower Murders was also adapted into a series broadcast in 2024, and its numerous plot connections to the first series effectively made it a de facto second season.

An adaptation of the third and final novel in the series, Marble Hall Murders, has been confirmed as in production.

The series was filmed in 2021, with exteriors shot in London, extensive location work in Suffolk, and additional filming in and around Dublin, including Dublin City University properties and locations in Bloomsbury, County Meath.

The production spent more than three weeks filming in the village of Kersey, Suffolk, where the real Bell Inn was transformed into the fictional Queen's Arms pub.

The series holds a 100% rating on Rotten Tomatoes based on 16 reviews, with an average score of 8 out of 10.