The display case offers a wide array of options: French, Italian, Caesar, balsamic and even raspberry vinaigrette. There is one particular dressing, however, that appears to be missing. At first glance, it feels like a mistake. Perhaps you simply glanced too quickly. Perhaps it’s stuck behind the raspberry vinaigrette packets. But no, as sad as it is to accept, the ranch packets seem to have disappeared from Lux — and this is where our Midwestern mystery begins.