‘A Wilderness of Error’ makes its own errors tackling the Jeffrey MacDonald case

Taking a deep dive into the notorious case of Jeffrey MacDonald a half-century later, “A Wilderness of Error” makes several errors of its own, including a heavy reliance on cheesy dramatic reenactments that cheapen the whole exercise. While this five-part FX/Hulu docuseries stokes some doubt about MacDonald’s guilt, its most provocative question — “What happens when a narrative takes the place of reality?” — goes unanswered.