Sister Boniface Mysteries.

About Sister Boniface Mysteries

Sister Boniface Mysteries is a British cosy mystery detective period comedy drama television series, created by Jude Tindall, which is produced by BBC Studios and BritBox. It is a spin-off of Father Brown, as the Sister Boniface character was introduced in "The Bride of Christ", a 2013 episode of Father Brown. A 10-episode first series premiered on 8 February 2022, on the BritBox streaming service, and was released in the UK on the UKTV Drama channel later in 2022. Sister Boniface Mysteries was commissioned for a second series, which began streaming in the US on Britbox on 3 April 2023. Series 3 began streaming on Britbox in the US on 24 April 2024. Filming on series 4 began in July 2024. Show creator Tindall died shortly after filming of series 4 began. Series 4 began streaming in the US on Britbox on 19 August 2025 and began on U&Drama in the UK on 26 September 2025, at 9pm.