This does not sound very promising on paper: character-driven thriller about a pair of priests investigating alleged miracles in rural Mexico. But those two priests are multidimensional (the more religious one is trained as a medical doctor, the more skeptical one as a canon lawyer) and their interactions are snappy and mostly heartfelt. The rest of the cast is largely unremarkable but this 'dynamic duo' and a fairly tight plot, without frills or holes, manages to keep us interested. Said plot is nothing to write home about, but gives them time to shine and packs a few twists and turns. Unfortunately, once fully revealed it seems a little overstretched and the last two episodes are bogged down with Latino melodrama (lots of tears and handwringing, poorly acted dilemmas, perpetual dramatic music, etc.)
On the whole it is a decent piece of television, and a relatively nuanced (if not terribly accurate) depiction of Catholicism.