The Marlow Murder Club is a British-American cosy mystery comedy-drama television series based on Robert Thorogood's series of novels set in the English town of Marlow, Buckinghamshire. The show is co-commissioned by UKTV and Masterpiece, airing in the UK on U&Drama and in the US on PBS, and streaming on U and PBS Passport, respectively.
The first series of The Marlow Murder Club, consisting of a single story, was adapted by Thorogood from his original novel of the same name. The second series, which began airing in the UK on 19 March 2025, consists of three two-part stories: the first adapted by Thorogood from his sequel novel, Death Comes to Marlow, and the second and third original stories by other writers.
In May 2025, the show was renewed for a third series, following the same three-story format as the second and including an adaptation of Thorogood's third Marlow novel, The Queen of Poisons, which screened on 18 March 2026; The second and third stories are titled Murder in the Dark and An Appetite for Murder, screening on 25 March and 1st April respectively.
Following the murder of two people in the Buckinghamshire town of Marlow, three residents form a loose club to investigate. Judith Potts, a retired archaeologist, sets crosswords for the local newspaper. Suzie Harris is a professional dog walker, while Becks Starling, a former music industry executive, is struggling to adapt to her new life as the vicar's wife. Detective Sergeant Tanika Malik, who leads the Buckinghamshire Police's response while Gareth Hoskins is on leave, is initially sceptical of the trio, but when they prove themselves apt, she hires them as official civilian advisors.
The women's family lives often provide subplots for the series. Judith inherited her riverside mansion from her late Aunt Jess and was briefly married to a fellow archaeologist decades earlier. Suzie has an 18-year-old daughter by her Jamaican ex-husband, and Becks and her husband, Colin, have a teenage son and daughter. Tanika and her husband, Shamil, have a young daughter, Shanti, and Tanika struggles with feelings of inadequacy as she balances her career with her home life.
Series 1 was released as two 90-minute episodes in the UK, but as four 45-minute episodes in the US. It consists of a single serialised story.
Series 2 consists of three stories, each split into two 45-minute episodes in both the UK and the US.