Five episodes in, and I'm liking this spin-off of Father Brown. They've given Sister Boniface credibility with a PhD and an official capacity as a consultant to the police. Where Father Brown is encumbered with a tiring and self-important (buffoonish) police inspector who resents and rejects input, Sister Boniface has a DI that appreciates her input yet exudes confidence in his own investigative work while appreciating input from his "staff." So far, so good... and enjoyable!