A 10-episode first series premiered on 8 February 2022, on the BritBox streaming service,[1] and released in the UK on the UKTV Drama channel later in 2022.

Sister Boniface is a Catholic nun at St. Vincent's Convent set in the fictional town of Great Slaughter in the Cotswolds (which were used as locations in Father Brown).

[6] The series share several writers and directors, such as John Maidens, Paul Gibson, Kit Lambert, Tahsin Guner and Ian Barber.

The location of the hidden radio station in Series 2 Episode 8 "Dead Air" was at Donnington Brewery, which is also home to Mrs Devine's house in Father Brown.

Sister Reginald's incorrigible brother Alfie Lynch, a habitual thief, turns up at the nunnery seeking help.