Synopsis
When two nuns die in mysterious circumstances at St Agnes convent, Father Brown investigates with the aid of Sister Boniface, an eager young fan of detective novels.
Other Archive resources

Father Brown | S1E10: The Blue Cross
When his priceless Blue Cross is targeted by the infamous criminal Flambeau, Father Brown takes the initiative to try and save his soul. But is he walking into a trap?

Father Brown | S1E9: The Mayor and the Magician
When the mayor drops dead during his speech at the Kembleford village fete, Father Brown deduces that he was deliberately electrocuted. Meanwhile, Mrs McCarthy's past comes back to haunt her.