It is a spin-off of Father Brown, as the Sister Boniface character was introduced in a Father Brown episode (Series 1, Episode 6: "The Bride of Christ").

Having appeared and impressed in just one episode, the bespectacled, enthusiastic Sister Boniface gets her own series. It is definitely worth a watch, don't go expecting anything too serious, or heavy, it's arguably lighter than even Father Brown.

"We are absolutely thrilled to see Sister Boniface return for a second series," producer Will Trotter said when news of the series' renewal was announced.

1960s “The Sister Boniface Mysteries is set in 1960s rural Warwickshire and follows the investigations of Sister Boniface, Bride of Christ, vintner, and Crime Scene Investigator. Police forensics is rudimentary by today's standards. DNA is yet to be discovered. Blood testing can take days.

Now, say hello to Sister Boniface. This clever, moped-riding nun is the police's secret weapon for solving murders in this divine Father Brown spin-off. The discovery of a housemaid's corpse at a local festival puts a damper on Great Slaughter's jovial gathering.

There's a special appearance from Father Brown himself While the show will be all about Sister Boniface, Mark Williams' Father Brown does make an appearance in the BritBox series, so get ready for the tag team to reunite once more!

Organizer, educator, and reformer, Boniface profoundly influenced the course of intellectual, political, and ecclesiastical history in Germany and France throughout the Middle Ages. He unified the missionary movement by bringing it under the control of Rome.

Boniface is known as the “Apostle of Germany” for his tremendous missionary efforts spreading the faith through that region of Europe during the Dark Ages. He was born in England in 680, and baptized with the name Winfrid.

Watch Sister Boniface Mysteries, Season 2 | Prime Video.

Sister Boniface is called to investigate. A sighting of the mysteriously missing Baron Battenberg sends the press and police into a frenzy. Determined to uncover the facts, Ruth and Sam go undercover.

Now, say hello to Sister Boniface. This clever, moped-riding nun is the police's secret weapon for solving murders in this divine Father Brown spin-off. The discovery of a housemaid's corpse at a local festival puts a damper on Great Slaughter's jovial gathering.

Based on the G.K. Chesterton novels, Father Brown follows the adventures of a 1950s Roman Catholic priest who also happens to solve crimes.