As Mindhunter Season 2 winds down—as Bill returns to an empty home and finds his wife and son have moved way without him; as Wendy throws out her ex-girlfriend’s trashy magazines; as Holden tends to a spaghetti stain on his shirt while Atlanta officials officially close the book on the so-called Atlanta Monster; as BTK poses for masked bondage photos with his souvenir gallery on full display—I feel it tried to do those 29 murders, those 29 victims, justice. It had to work as an engaging television story to do so, not just a current-events report or a Wikipedia article. And it did.

I reviewed the season finale of Mindhunter for Decider. This season was a tremendous step up from its predecessor.

If you’ve been reading these reviews of Mindhunter Season 2, you know one of my main (or really only) complaints about this season has been the lack of interesting things for Nancy Tench to do. Not the lack of interesting things done with her—when your little boy crucifies the dead body of another little boy in hopes of bringing him back to life, you’ve got a lot on your plate, to understate the case to an absurd degree. But her reaction has consisted mostly of fretting that everyone else, from his case worker to his father, is doing more harm than good, and only she can see it. My term for this character type is “mama bear,” and my go-to example of the syndrome is Catelyn Stark during the first season of Game of Thrones. (The book version of the character was far livelier and slipperier.)

I’m not leveling this complaint anymore, not after this episode. For one thing, Nancy is evincing unspoken feelings at last, when she is clearly but (and this is key) not vocally perturbed that even the goddamn caseworker investigating her child’s welfare after a goddamn killing is as spellbound by hubby Bill’s stories of serial killers as your average small-town cop or D.C. bigwig.

But more importantly, she denies the mother of a victim closure, and we’re made to sit with this decision, and we’re forced to live with it. I can’t tell you how much good it does a show to have this kind of faith in its audience, to let a character do something seemingly unsympathetic and ask you to sympathize anyway.

I reviewed the seventh episode of Mindhunter Season 2 for Decider.

If there’s a chink in Mindhunter‘s armor right now, it’s Nancy Tench. That’s not the fault of actor Stacey Roca, mind you; her performance is sharp and vibrant. But between Catelyn Stark–style “You have a choice, and you’ve made it” dialogue, shopworn stage business like lying secretly awake with her eyes open as her husband climbs into bed, and a relationship with the two other characters with whom she comes into contact, Bill and Brian, that consists solely of reprimanding them, she’s a reactive and predictable character. A type, even.

Being a concerned parent, or a concerned mother specifically, doesn’t suddenly rob you of the potential for a rich emotional life—it might even enhance it—but you wouldn’t know it from watching this. Where’s the Behavioral Science Unit when you need it?

I reviewed the sixth episode of Mindhunter Season 2 for Decider. It’s not perfect.

If you couldn’t tell, I’m finding all of this rather compelling this time around. Without that weird clipped dialogue from last season dragging it down, Mindhunter is able to live its authentic self: a smart period crime drama asking questions about human behavior that its characters don’t have the answers to.

I reviewed the fifth episode of Mindhunter Season 2, which feels almost like a new show, for Decider.

Even as Bill investigates a series of child murderers, the investigation of the child murder that was discovered in his wife Nancy’s real-estate listing takes a disturbing turn. Their son Brian, it seems, was part of a group of children who killed their toddler playmate; it was he who found the key to the vacant house, and he who suggested arranging the boy’s body on a makeshift crucifix. The episode ends almost the moment the disconsolate Nancy reveals this information to her husband, as it probably should. Nothing more can be said.

Except that the real-life Bill Tench, Robert K. Ressler, never went through this with his own son. By all accounts, the show made this storyline up from scratch.

The question is whether this large a leap from the reality of the situation is worth the effort. It wasn’t on, for example, Masters of Sex, a similarly high-minded period piece about cutting-edge research on human behavior. Michael Sheen and Lizzy Caplan’s Masters & Johnson had their family lives changed around to give them obnoxious teenagers with screentime-devouring personal problems, an infamous prestige-TV pitfall the show actually went out of its way to create for itself.

We’ve already sat through a season-plus of Dr. Wendy Carr, Lesbian, with minimal difficulty. Her queerness is a solid method for establishing her as different from the straight and narrow (in every sense of the words) FBI world, and the pathologization of homosexuality commonplace at the time is a way of demonstrating the blowback bad research can have on innocent people; both of these are important aspects of the BSU for the show to tackle. Plus, it simply gives Wendy, and actor Anna Torv, a bit more to do than show up and be smarter than everyone else—nice work if you can get it, but hardly enough to make a character out of.

The situation with Bill’s son strikes me as very different, and potentially very detrimental. If it turned out that one of the founders of the serial-killer concept had a child murderer for a son—well, that would come up in virtually everything every written about the study of serial killers, right? America’s Most Wanted founder John Walsh’s son fell victim to serial killer Ottis Toole, and that gets talked about every time Walsh and his program are discussed, to cite a comparable situation. There will be a marked drop-off in verisimilitude unless this is made central to the saga of the BSU going forward.

Perhaps even more crucially, it has to be central to the show as drama. Maybe this is just me repeating my oft-cited principle, via Mad Men‘s Matthew Weiner, that when you kill a child on your show, your show must then be about that death, since life itself would be, too. This has to go double if the child is killed by another child, triple if that child is the son of your main character, quadruple if your main character studies killers. Anything less would throw off the emotional machinery of the entire show.

A good procedural needs to be taught, tight, and relentlessly logical in how its characters think and act. Is Mindhunter Mach 2 a good procedural? We’re about to find out.

I reviewed the fourth episode of Mindhunter Season 2 for Decider. This is an unusually long excerpt because I think everything it discusses is vitally important.

This isn’t wisdom from on high, doled out to us in the audience by mad-genius investigators. It’s more like seeing Bill and Holden and Wendy slowly clean out a messy room until only the important things remain. Watching the hard work and leaps of intuition that go into what we now take as common sense is what sets Mindhunter apart from the rest of the procedural pack.

I reviewed episode 3 of Mindhunter for Decider.