Florence Pugh is English nurse "Mrs. Wright" who travels to Ireland to nurse a young girl who hasn't eaten in quite a while. Well at least that is what she thinks. Upon arrival, she discovers from the board that she and a nun (Josie Walker) are not to nurse at all, but to sit and watch what happens to this young girl "Anna" (Kíla Lord Cassidy). Is this all a fraud or is it divine intervention that is enabling this young woman to survive un-nourished but for the odd sip of water. Enter Tom Burke's rather sceptical journalist "Will", a local who moved to London but who still has more than his fair share of demons. Soon he and the nurse begin to bond, despite their initial difference of opinions about the whole thing and she knuckles down to discover just what is going on. Pugh is really effective here, delivering a characterisation that is considered and sympathetic but by no means gullible. The story is a slow burn, and to be honest I found the conclusion a little implausible and unsatisfactory but she and the young Cassidy carry this really well. The dialogue is sparing with some beautiful scenery that helps well to depict an Ireland still in the grip of anti-English sentiment and religious superstitions.