"Devil's Knot" has gotten a lukewarm reception from audiences and this is ill-deserved. The film is a perfect-pitch plainsong retelling of the case of the West Memphis Three. Atom Egoyan is a master of understated film-making, but perfectly depicts the aura, atmosphere, cultural inclinations and Bible-belt provincial biases of the participants without being garish. Marvelous performances from Reese Witherspoon, Bruce Greenwood,Colin Firth and several others are on view here. Mireille Enos's lightning-catching turn as Vicki Hutcheson, in which she brilliantly channels uneducated de classe white-trash coarseness, is worth sitting through the entire film. The esteem in which this competent film is held will grow with time.