This viewer who sees way too many movies that telegraph their obvious plot twists from the first few minutes admires the narrative gamesmanship of “Caddo Lake,” even if I’m pretty sure I couldn’t explain it without a pen and paper to chart it out. It’s too bad that the climax relies on Ellie doing a great deal of Googling to do the movie’s best to explain how everything ties together, but it’s forgivable for a flick that is best experienced cold, seeing this family saga tie itself in knots in a way that could only happen in those seemingly unstable places in the world like Caddo Lake.Someone says to Paris Long, one of the dual protagonists of Max’s original film “Caddo Lake,” “If you can’t explain yourself, you’re not going anywhere.” I’m not sure I could fully explain this movie, so I might be in trouble.