I was eating cereal at midnight, scrolling through my phone, when I stumbled across a Goodreads review that said, “We support women’s wrongs.” I snorted milk. Then I downloaded the book. I finished it before the sun came up, and I’m not sure I blinked more than once.
Here’s the thing about Freida McFadden’s Dear Debbie: it’s the kind of thriller that makes you feel slightly guilty for enjoying it so much. Because Debbie—our protagonist—is a menace. A walking red flag. A suburban mother of two who writes an advice column while privately fantasizing about what she’d really tell those women. And when her own life starts cracking at the seams, she stops dreaming.
She acts.
The question that kept me turning pages: what happens when a woman with a genius IQ, a history she’s buried deep, and absolutely zero patience for injustice decides she’s done being nice?
The Woman Who Stopped Being Nice
Debbie Mullen is forty-something, brilliant in a way that makes her terrifying, and remarkably good at keeping up appearances. She dropped out of MIT for reasons she won’t discuss. She designed apps nobody knows about. She writes Dear Debbie for the local paper—a column where she offers gentle, practical advice to women in bad marriages. But the drafts she writes but never sends? They’re venomous. They’re honest.
Then the floor falls out.
Her job disappears. Her teenage daughter Lexi is dating a creep who empties the fridge and the liquor cabinet. Her younger daughter Izzy quit soccer and won’t say why—but there’s a coach with rumors trailing him like smoke. Her husband Cooper is hiding something, and the tracking app on his phone isn’t calming her down. And her neighbor? That woman stole the spotlight on her garden feature for a magazine.
Petty, you think. But that’s the genius of McFadden’s construction. She stacks small humiliations and large betrayals until you feel the weight. By the time Debbie’s past catches up with her—something that happened twenty years ago, something she let slide—you’re not just understanding why she snaps.
You’re hoping she does.
I’ll be honest: I was rooting for her through every unhinged decision. Every time she slipped into a “Dear Debbie” draft that was actually a death threat, I laughed. Every time she tracked someone’s phone or sabotaged a car, I felt a little thrill. It’s unsettling how easily I let myself cheer for a vigilante with a perfect manicure.
The Drafts She Never Sends
Dear Debbie is not a subtle novel. It’s not trying to be. But beneath the popcorn-thriller surface—the fast chapters, the addictive pacing, the twist that hit me like a truck—there’s something sharper.
The core theme is feminine rage. Not the performative kind you see on social media. The real, quiet, decades-old kind. The kind that builds in women who’ve been told to be nice, to be reasonable, to be the bigger person. Debbie’s internal monologue is a masterclass in that pressure cooker. She thinks, “I’m done being reasonable.” And you feel it in your chest.
The key image that stuck with me: the draft replies. Those unsent letters. McFadden shows us what Debbie wants to say—vicious, satisfying, honest—next to what she actually sends—polite, measured, useless. That gap is the whole novel in miniature. It’s the space between what women feel and what they’re allowed to express.
There’s a moment when Debbie looks at her daughter and realizes that the same thing that happened to her is being repeated. Not exactly. But close enough. The rage that flickers across her face—McFadden doesn’t describe it, she just shows Debbie’s next action. The restraint in the writing is, ironically, what makes it so explosive.
The Coincidence You Accept at 2 AM
Look, it’s not perfect.
The twist in the final third—the big one—relies on a coincidence that would never happen in real life. I saw some readers complaining about it, and I get it. It’s the kind of reveal that makes you go, “Wait, what?” and then “Oh come on.” But here’s the thing: I didn’t care. By that point, I was so invested in Debbie’s chaos that I accepted it like you accept a friend’s bad decision at 2 AM. You just nod and keep going.
Also, Debbie is… a lot. She’s a genius, a former MIT student, a secret vigilante, a devoted mother, a petty neighbor-saboteur. That’s a lot of hats for one character. Some readers will find her unbelievable. I found her ridiculous in the best way—like a superhero origin story where the power is “zero fucks left to give.”
The book won’t work for everyone. If you need your thrillers grounded, realistic, with moral complexity and slow-burn psychology, this isn’t it. Dear Debbie is fast fashion for thrillers, as someone on Goodreads said. It’s designed to be consumed in one sitting, enjoyed, and then left on the nightstand.
The Guilty Pleasure You Own
Read this if you’ve ever fantasized about telling someone exactly what you think of them and then walking away. Read this if you’ve ever been the bigger person and regretted it. Read this if you want to feel, just for a few hours, what it might be like to let the leash go completely.
Don’t read this if you’re looking for literary depth or moral lessons. Don’t read this if you need your protagonist to be a good person. Debbie is not good. She’s something more interesting: she’s done.
I finished Dear Debbie feeling both energized and slightly horrified at myself. I wanted more. I wanted a sequel. I wanted to see what Debbie would do with a proper target list. And I wanted to know: what does it say about me that I loved every minute of watching her burn it all down?
