Maud (Morfydd Clark) is a nurse for hire, about to start a new job giving palliative care to ex-dancing star Amanda (Jennifer Ehle). She moves into Amanda’s home, and, having recently developed an intense relationship with God, takes it upon herself to save Amanda’s soul. From there, her obsession with the divine and urge to control Amanda intensifies, and the film develops into a warped, horror-tinged character study of a girl who is just as vulnerable as she is violent.