The Coworker

What's inside (9 sections)

1. Natalie Farrell and Dawn Schiff at Vixed
2. The morning Dawn does not show up
3. Emails to Mia, missing money and turtle signs
4. The 5K for Amelia and an arrest in front of everyone
5. Dawn alive, Caleb, Mia and the long revenge
6. Wollaston Beach and the deal no one says aloud
7. What works and what wobbles
8. Key takeaways
9. FAQ

I came to this one after back to back Housemaid books and I wanted to see if Freida McFadden could pull the same fast trick in an office. The Coworker was published in 2023 by Grand Central Publishing, around 335 pages in the standard hardcover edition, and it centers on two women who share a wall of cubicles and almost nothing else. I read it in three nights, mostly after work, which felt fitting because so much of it happens under fluorescent lights and in parking lots after hours.

Natalie Farrell is the star. Dawn Schiff is the odd one out. That contrast drives the first half, and McFadden plays it straight at first before she starts flipping who you trust. If you like short chapters and plain prose with one more uncomfortable detail each time, this will move quickly for you. If you want careful police work or characters who make smart choices under stress, parts of it will annoy you.

Natalie Farrell and Dawn Schiff at Vixed

Natalie works in sales for Vixed, a Boston nutritional supplement company, and she has been the top rep five years running. She is polished, on time, good with clients, good at remembering birthdays in the office. She organizes the annual 5K charity run for cerebral palsy research, held in honor of a high school friend named Amelia. People like her, or at least they act like they do, which in an office amounts to the same thing.

Dawn sits right next to her as an accountant. She arrives at precisely 8:45 a.m. every day, eats the same lunch, says the wrong thing in meetings, laughs a beat too late. She has no friends at work and does not seem to know how to make any. Her one visible passion is turtles. Plastic turtles, wooden turtles, photos taped to her monitor, a shelf of ceramic turtle figurines at home that coworkers learn about later. It would be sweet if it did not make her such an easy target for jokes.

The dynamic between them is uncomfortable from the start. Natalie tries, in her version, to be nice. She invites Dawn to lunch once, then stops when Dawn makes it awkward. Dawn keeps trying in small ways that land wrong. She notices Natalie's expense reports and points out extra charges. She learns that Natalie had an affair with their married boss Seth and holds onto that fact. Natalie, in turn, talks about Dawn behind her back, little eye rolls she would deny if quoted back to her.

Two men around them matter. Seth is the boss, older, married at first, attentive to Natalie in meetings in a way everyone clocks. Caleb is newer in IT, easy to talk to, interested in Natalie. He asks her out. She says yes. He comes over, leaves around 9:30 on an ordinary night, texts like a normal boyfriend. Nothing about him flashes as dangerous, which is part of the point.

The morning Dawn does not show up

The break comes on a normal weekday. Dawn, who is never late, is simply not at her desk at 8:45. No call out. No email. Then Dawn's desk phone rings and Natalie picks it up out of habit. A woman's panicked voice says help me and the line goes dead. It is brief and strange enough that Natalie replays it for hours.

The day before, Dawn had messaged Natalie asking to meet alone about something important. Natalie had brushed it off in the rush of sales calls. Now that message looks different. She goes by Dawn's house in Quincy after work, telling herself she is just checking. No one answers. She gets inside and finds blood on the living room carpet. Not a huge pool. Enough to stop any normal errand cold.

Natalie calls the police. That decision sets the rest of the book in motion because once you call, you are in the record. Detectives take her statement. They look at the carpet, the kitchen, the bathroom. They ask when she last saw Dawn, what they talked about, whether they were friends. Natalie says coworker, not friend, which is true in her mind but sounds cold written down.

She also lies about one thing right away. She says Caleb was with her all night, a full alibi, when in fact he left earlier in the evening. It feels at the time like a small lie to avoid hassle. Police hear alibi plus blood plus missing woman and they narrow in. Forensics adds pressure when Natalie's fingerprints turn up in Dawn's house on kitchen knives and on a wine glass. Natalie has never had dinner there. She cannot explain it, and none of her theories calm her down.

Emails to Mia, missing money and turtle signs

Detectives find Dawn's emails to a friend named Mia. In those messages Dawn paints a sad picture. She tried to befriend Natalie. Natalie mocked her, excluded her, made work harder. She describes the turtle collection with pride and then with hurt, because Natalie joked about it. She mentions Natalie's affair with Seth and business expenses that look padded.

A week before she vanished, according to the emails, Dawn found missing company funds tied to Natalie's sales accounts. She confronted Natalie privately. Natalie denied stealing and asked Dawn to help her look into it quietly. They set a plan to meet at Dawn's house around 10 p.m. on that Monday night to go through records. That meeting never shows in Natalie's phone the way police expect, which makes it look like she deleted it.

At the office, small things start to rattle Natalie. A little turtle figurine appears on her desk. She throws it away. Another appears. No one claims it. She gets silent calls from a blocked number. She installs a tracking app with Caleb's help and traces one cluster to a motel near Providence, Rhode Island, which makes no sense to her yet.

Then comes the worst find. At home, doing laundry, she lifts clothes in her hamper and sees a large ceramic turtle covered in dried blood. The shape matches a gap on Dawn's shelf that police photographed, one figurine missing from the row. Natalie understands exactly how this looks. If police search her house, that object ends her life. So she does what panicked people in thrillers do and what real lawyers beg you not to do. She smashes it in a bag, drives to Wollaston Beach, and throws the bits in the water.

The 5K for Amelia and an arrest in front of everyone

Through all this, Natalie keeps planning the 5K. It matters to her reputation and, she insists, to her memory of Amelia, the friend from high school with cerebral palsy who died young. Sponsors, T shirts, water tables, a speech. Seth, now separated from his wife, drifts closer again. Natalie sleeps with him once more but will not leave Caleb for him. She tells herself Caleb is steadier and less tangled with work.

Caleb, under police questioning, revises his story. He admits he did not stay all night that Monday. He left around 10 p.m. That correction kills Natalie's alibi and opens the exact window when Dawn was last thought to be home. Police search Natalie's house after that, though the turtle is already gone. They take her laptop, her trash, her sheets in bags.

A body is found, beaten and hard to identify. Cause looks like blunt force trauma. For a day or two everyone assumes it is Dawn. Natalie feels sick when she hears. Even if she disliked Dawn and joked about the turtles, she did not want this. She pictures the 8:45 arrivals, the quiet typing next door, the emails to Mia that now read like cries for help.

Race morning arrives bright and loud. Runners pin numbers. Natalie takes the mic to talk about Amelia. Police walk up in front of sponsors and volunteers and arrest her for Dawn's murder. It is the most public humiliation McFadden could stage. Natalie asks Caleb as they pull her away to check the Rhode Island motel lead. He promises he will.

Dawn alive, Caleb, Mia and the long revenge

Part two shifts to a motel room outside Providence. Dawn is alive. She is hungry, sore, bored, watching coverage of Natalie's arrest on a small TV. Her wrist is bandaged where she cut it herself to bleed onto her own carpet. The voice on the phone, the blood, the missing figurine, all of it was placed.

The motive reaches back to high school. Amelia, called Mia by friends, had cerebral palsy and was bullied by Natalie and another girl named Tara Wilkes. The bullying was sustained and cruel, notes passed, mimicry in hallways, exclusion that followed Amelia home. Amelia died by suicide. Dawn had been Amelia's close friend, quiet and loyal, the one who sat with her at lunch. She never forgave Natalie for moving on, succeeding, turning Amelia into a charity run name while Dawn still dreamed about her.

Caleb is Amelia's half brother. He and Dawn planned this for months. They each took jobs at Vixed to get near Natalie. Caleb created the Mia email account so Dawn could write fake exchanges that painted Natalie as a bully and an embezzler. He dated Natalie to learn her routines, lift her fingerprints onto glasses and knives he carried to Dawn's house, plant small turtles on her desk, and slip the large bloody turtle into her laundry hamper.

Seth becomes useful in a way I did not expect. He looks at the actual company ledger and realizes no money is missing. The embezzlement story in the emails does not match the books. That tells him the emails were built to frame, not to report. He pays Natalie's bail. He drives with her to Rhode Island, bribes a desk clerk, confirms Caleb and Dawn stayed together there. Back in Boston, Caleb cracks when confronted. He says Dawn is spiraling and talking about hurting herself to make sure a body is found and Natalie goes away for life.

The mechanics are clever on paper and shaky up close. A fake friend account that no one verifies for weeks. Fingerprints lifted and reset without smudges. Jobs secured at the same mid size firm without HR flagging connections. A self cut wrist that bleeds enough for photos but allows travel to Rhode Island. McFadden moves so fast you almost do not stop to ask. On a second pass the seams show.

Wollaston Beach and the deal no one says aloud

Caleb begs Natalie to help find Dawn before she does something final. They track her to Wollaston Beach, the same water where Natalie dumped the smashed turtle. Dawn stands near the edge, talking about Amelia, about how Natalie got to grow up pretty and promoted while Amelia stopped at seventeen. She says she will drown herself and leave enough signs that Natalie takes the blame for a second death too.

Natalie talks, not well but honestly. She apologizes for high school. She says she was seventeen and cruel and stupid, that she cannot undo it, that Tara was part of it too. She tells Dawn that Caleb loves Dawn, not Natalie, that his dating Natalie was performance and his care for Dawn is real. Something in that reaches Dawn. Or exhaustion does. Police and Seth close in. No one dies in the water that night.

Then the last turn drops. The body found earlier is identified. It is not Dawn. It is Tara Wilkes, Natalie's old friend and co bully, beaten to death. Natalie hears the name on the news and goes cold. Dawn must have killed her and left her where Dawn's own body was expected to be found. The plan needed a corpse to force an arrest. Tara became that corpse.

Dawn gives police a thin story and they accept it. She says she was stressed, bullied at work, hit on the head by a falling ceramic turtle, got disoriented, wandered, lost time. The file quiets. One year later the surface looks calm. Dawn and Caleb are engaged. Natalie and Seth are together. Natalie and Dawn even co organize the 5K in Amelia's name, smiling in photos like coworkers who survived something.

Underneath is a trade. Natalie did steal from Vixed. She skimmed early, then covered it by skimming donations from the 5K when pressure grew. Dawn knows and has proof. Dawn killed Tara, or arranged it closely enough that denial is theater. Natalie knows. Neither talks. Each keeps the other's secret because exposure ruins both. No courtroom speech fixes high school. No charity run cleans company books.

What works and what wobbles

What works is speed and clarity. Chapters are short. Sentences are plain. McFadden tells you who is where, what time they arrived, what was on the desk. The Vixed office feels real in its pettiness. The turtle detail, which could be cute, becomes genuinely creepy once the figurines start moving. The high school backstory reframes Natalie's charity work in a harsh light without a lecture.

The criticism is about logic, and it matters more here because the whole plot is a constructed trap. For the trap to hold, police have to miss the fake Mia account for a long time, forensics has to read fingerprints without questioning transfer, and no camera has to catch Caleb moving objects between houses. Natalie's decision to smash the turtle and drive to the beach should create new evidence, not erase it. Dawn cutting her own wrist enough to stage a scene and then traveling alone strains belief. Tara as the substitute body requires timing and transport that the book hurries past.

The middle repeats beats too. Another turtle on the desk. Another silent call. Another interview where Natalie says too much without a lawyer. After the third loop I started skimming to get to Rhode Island. Readers who want procedure will feel that gap. Readers who want momentum may not care.

It suits readers who enjoy workplace suspense, mean girl history resurfacing, and double twists that reassign guilt. It does not suit readers who need steady detectives, careful evidence chains, or full justice at the close. Bullying of a disabled teen ending in suicide, blood staging, self harm, an affair with a boss, a beaten body, and theft from charity funds all feature. None of it stays graphic for long, but the bullying chapters are cruel on purpose and they linger.

I finished feeling entertained and slightly cheated, which seems to be the McFadden contract. The first twist, Dawn alive and Caleb helping, I saw coming from the motel pings and the too neat emails. The second, Tara as the body, surprised me more. The final trade felt right for these two even as it left a sour taste. If you go in knowing the logic bends to serve the reveals, the ride holds. If you need every fingerprint and timestamp to survive scrutiny, read it as character revenge with office dressing and forgive the rest.

FAQ

Who are Natalie and Dawn in The Coworker?

Natalie Farrell is the top sales rep at Vixed, a Boston supplement firm. Dawn Schiff is the awkward accountant next to her who loves turtles and arrives at 8:45 each day.

Is Dawn really dead?

No. Dawn faked her disappearance with Caleb, Amelia's half brother, to frame Natalie for murder. The body found early in the case is later identified as Tara Wilkes.

When was The Coworker published?

It was published in 2023 by Grand Central Publishing in a 335-page edition. The summary follows that text and keeps its facts aligned.