Jane Campion returns to the kind of mythic frontier landscape--pulsating with both freedom and menace--that she previously traversed in The Piano in order to plumb the masculine psyche in The Power of the Dog, set against the desolate plains of 1920s Montana and adapted by the filmmaker from Thomas Savage's novel. After a sensitive widow and her enigmatic, fiercely loving son move in with her gentle new husband, a tense battle of wills plays out between...