Ah, brilliant. I was about 4/5 of the way through, and was totally enraptured by it, but a number of things just felt off, but I just ignored them. Stuff like him saying "what would you do if you heard your missing child was on a plane? I'd jump right on!" when he wasn't a father, he was a total 100% loner who had to look after himself his whole life it seemed, that seemed like a lie. Then when it started to turn into pointing the finger at the family, I had to turn it off pretty quickly, the PI was just loving telling the story, and the FBI agent was rattling on and on about the polygraph, and claimed she had some success by getting her to fail it the third time (???????????) and the polygraphist starts immediately passively accusing her, just sounded bullshit. And there would only be a few choice clips in there from the family, for a few seconds, just so shady. Like they would have some hanging implication about them murdering their child, and it cuts to the mother just staring, looking guilty. What happened? Did they play her the film so far then film her reaction and she looked blatantly guilty and like she was going to cry?

The makers of this film should be utterly ashamed of themselves imo.