Last week’s episode delivered the kind of horror you don’t usually expect from a horror franchise: human horror, having nothing to do with killer creatures and everything to do with the human condition. Come to think of it, The Walking Dead has pulled this trick on several occasions, but never more effectively than last week, when it whittled its ranks even more, but without having a single walker to blame for the body count. And this week, what happens next? The way this season is winding up, almost anything…