There’s a threshold that audiences can take when it comes to movies with a mysterious central premise. Too much left unexplained and the excitement can lead to confusion and boredom. Too much exposition and the film crumbles under the weight of didacticism. While writer-producer-director Jordan Peele’s Us, the follow-up to his Oscar-winning Get Out, seems to handle the threshold as well as he did in his previous film, it doesn’t have the same richness and obvious metaphors of that one. Not to imply Us is bad, but that it is unfortunately, and likely unfairly, being held to a standard it fails to reach.