You watch “True Story” (2015) with the expectation that there’s going to be the typical true-crime plot twist, even though it’s so obvious that there isn’t going to be one. Instead, you get a character study of a disgraced journalist (Jonah Hill) and an accused murderer (James Franco) and the bizarre relationship that develops between them. Which is sort of like the bizarre relationship you have with the plot, wanting to believe in something that you know isn’t there. Because it makes for a better story? You went in wanting to understand a killer. You ended up understanding the writer.