My Genes Got Hacked and So Did My Heart

A CRISPR Bomb Goes Off, Literally

Logan Ramsay works for the Gene Protection Agency, which is a very Crouch move: invent a near-future bureaucracy whose entire job is stopping people from editing their own DNA into something dangerous. Logan used to be a geneticist himself, and not the good kind. His sister Kara did something catastrophic with genetic engineering years back, something involving a famine-solving wheat crop gone horribly wrong that reads uncomfortably close to real gain-of-function anxieties, and thousands died. Logan’s been living under that shadow ever since, doing penance by hunting down other people’s genetic sins.

Then he goes to investigate a scene that echoes his sister’s disaster and something injects him, literally, with a payload that starts rewriting his own genome in real time. What follows is not a slow creep. Within days Logan is stronger, faster, his eyesight is sharper, his memory is turning encyclopedic, and by the time his own agency realizes what happened to him he’s already becoming something they can’t control and, more terrifyingly, something they might want to weaponize. He goes on the run. His ex-wife and daughter become both his weak point and his reason for staying human enough to care. And somewhere out there is the person who did this to him on purpose, with a plan a lot bigger than curing one guy’s genome.

I want to be clear that I’m not spoiling the good stuff, because the good stuff isn’t the chase. It’s what happens to Logan’s mind as his brain gets better, and whether “better” and “human” can survive being the same word.

The Slog in the Middle Is Real, and So Is the Gut Punch at the End

Here’s the thing. Crouch writes like a screenwriter who’s already blocked out the movie in his head, which is usually his superpower. In “Dark Matter” that instinct made every chapter a jolt. In “Upgrade” it works against him for a solid stretch in the middle third, where Logan is essentially in hiding, doing training-montage stuff, getting stronger, having Big Realizations about consciousness that read like they were dictated instead of felt. I put the book down for almost a week around that point, which for me is basically a divorce filing with a thriller. The prose is functional at best. Sentences do their job and get out. If you’re the kind of reader who needs music in the language, you will not find it here, and I won’t pretend otherwise.

But then the back half turns into something I did not expect, which is a book about parenting and inheritance disguised as a bioweapon thriller. Logan’s daughter Ava is smart in her own right, ambitious, a little cold to him because he left, and there is a scene where he has to explain to her what he’s becoming without lying to her about how much of himself he’s already lost, and it’s the best writing in the book by a mile. Crouch usually deals in ideas. Here for a few chapters he deals in grief, and it turns out he’s good at it when he lets himself slow down enough to try.

The tangent I have to go on: this book made me think about my own grandmother, who had dementia the last three years of her life, and the specific horror of watching someone become unrecognizable to themselves while everyone around them insists they’re still there. “Upgrade” flips that horror inside out, evolution instead of decay, but it lands in the same place, which is the question of what part of a person is actually the person. I did not expect a CRISPR thriller to make me think about my grandmother in a Kroger parking lot, but there I was.

Is the ending too neat? A little. Crouch wants his cake (a genuinely upsetting meditation on transhumanism and free will) and he wants to eat it too (a satisfying, mostly hopeful thriller ending). He mostly gets away with it because Logan’s final choice is earned, but I’d be lying if I said the last twenty pages didn’t pull a punch or two that the first three hundred had set up to actually land.

Every upgrade is also a loss, you just don’t get to pick which parts of yourself go missing.

About Blake Crouch

Blake Crouch is the guy who took the multiverse and made it feel like a divorce and a mortgage, which is why “Dark Matter” hit as hard as it did. He started out writing pulpier thrillers (the Wayward Pines trilogy, which became the Fox show), and somewhere around “Dark Matter” he figured out his real trick: take a genuinely wild science concept, run it through a very ordinary, very tired, very human protagonist, and let the emotional stakes be about marriage and parenthood instead of saving the world. He’s not a stylist. He will never win you over with a sentence. What he does is build machines that generate feeling, and most of the time the machine works.

If This Wrecked You, Read These Next

Start with Upgrade if you haven’t, obviously, but here’s where to go after.

• “Dark Matter” by Blake Crouch, for the same emotional trick (ordinary man, impossible science, marriage as the real stakes) done with tighter pacing than “Upgrade” manages
• “Recursion” by Blake Crouch, if you want the same author but with memory and time instead of genetics as the weapon
• “Blindsight” by Peter Watts, for a much colder, much smarter cousin to the “what is consciousness even for” question “Upgrade” raises but doesn’t fully chase
• “The Old Man and the Gun” energy of “Klara and the Sun” by Kazuo Ishiguro, if what actually got you was the parenting and loss angle, not the science

For your book club

1. Logan’s sister Kara caused a disaster with good intentions. Does the book let Logan off the hook too easily for hunting people who might have been trying to do the same kind of good she was?
2. If you could take the upgrade Logan gets, knowing it would make you smarter, stronger, and slightly less recognizably yourself, would you?
3. Is Ava’s arc believable to you as a portrait of a daughter forced to reconsider her father, or does it feel like a plot device to keep Logan human?
4. The book treats intelligence and empathy as things that can trade off against each other. Do you buy that premise?
5. Did the ending feel earned to you, or did Crouch chicken out on the darker implications he spent three hundred pages building?