Freak Show, which is now all but certain to go down in the record books as the weakest season of American Horror Story so far, helps to confirm an unofficial rule about the series at large: The more a season actively utilizes its chosen setting, the better it is. Asylum explicitly, cannily exploited the fears we have of a mental institution, positioning it as a convincing, disturbing barometer for social ills. Murder House played with most of the haunted-house-movie tropes, adding a dash of kink to a genre that, as of late, too often resists it. Coven, the first really uneven season, appeared to be driven by clichés that are more routinely associated with superheroes (particularly the X-Men) than witches. And Freak Show, apart from the occasional ghoulish flourish, really needn’t be set at the titular grounds at all, as much of its conflicts, such as they are, derive from isolated betrayals and killings that are often accompanied by the obligatory speech about freaks’ rights. A freak show is a potentially great setting for a horror series, but it’s hardly mattered here, as we’ve rarely seen a performance of the show, and backstage shenanigans are essentially nonexistent.