Saint Maud

Saint Maud is a movie starring Morfydd Clark, Caoilfhionn Dunne, and Jennifer Ehle. Follows a pious nurse who becomes dangerously obsessed with saving the soul of her dying patient.
Having recently found God, self-effacing young nurse Maud arrives at a plush home to care for Amanda, a hedonistic dancer left frail from a chronic illness. When a chance encounter with a former colleague throws up hints of a dark past, it becomes clear there is more to sweet Maud than meets the eye.