The limits of “Love Thy Neighbor” and the American Dream are tested in this superior, richly layered, searingly American documentary about a small town turned boomtown after hydraulic fracturing uncovers a rich oil field in North Dakota. Tens of thousands of unemployed men descend on the state, only to find slim work prospects and nowhere to sleep. Meanwhile, in the nearby small town of Williston, Pastor Reinke believes it is his duty to turn his Lutheran Church into a makeshift dorm and counseling center for the migrants each night. Much of the community opposes his approach, and even want to deny the homeless any services. Filmmaker Jesse Moss spent two years embedded in Williston to make this devastating masterpiece, complete with a twist ending you probably won’t see coming.