Finlay Donovan Digs Her Own Grave

The fifth installment in the Finlay Donovan series opens with Finlay Donovan, a single mother and mystery novelist, in the office of her daughter Delia's preschool principal. Five-year-old Delia has been suspended for two weeks after injuring a boy named Cooper, who was repeating neighborhood gossip about Finlay's ex-husband Steven Donovan being unfaithful. Finlay's nanny and confidante, Vero (Veronica Ruiz), bursts in carrying Finlay's naked two-year-old son, Zach, mid-potty training. Steven, a landscaper and sod farm owner, arrives and sides with Delia, and the family leaves for consolation ice cream.

That evening, neighbor Stacey Pickens delivers alarming news: While Finlay and Vero were away in Atlantic City, a body was discovered in the yard of Mrs. Haggerty, Finlay's elderly neighbor and former neighborhood watch president. The remains have been identified as Gilford Dupree, a mortgage broker who vanished five years ago. Though Mrs. Haggerty was initially arrested, all charges have been dropped. The discovery carries particular weight for Finlay, who harbors dangerous secrets. Months earlier, a man named Harris Mickler died of carbon monoxide poisoning in Finlay's van after she drugged him to prevent him from assaulting his date. Though Finlay did not intentionally kill him, she and Vero buried his body on Steven's sod farm and pinned the crime on the Russian mob, setting off a chain of criminal entanglements. When Mrs. Haggerty's grandson, Brendan Haggerty, asks Finlay to house his grandmother temporarily while her flood-damaged home is repaired, Finlay reluctantly agrees.

Mrs. Haggerty proves a chaotic houseguest, commandeering Finlay's bedroom and brandishing her late husband's gun at Finlay's boyfriend, Nick Anthony, a Fairfax County detective, when he lets himself in late at night. Finlay's literary agent, Sylvia, pressures her into meeting a Hollywood producer about adapting her novels for television, adding professional stress to mounting personal pressures. Meanwhile, Finlay observes Mrs. Haggerty sneaking out at night to deliver handwritten book club invitations to neighbors, a detail that will prove significant.

The case takes a dangerous turn when Detective Mike Tran of the Loudoun County Police finds a landscaping receipt placing Steven at Mrs. Haggerty's property the same week Gilford disappeared. Tran implies that Steven, whose sod farm yielded five exhumed bodies the previous fall in a separate case, had both the means and the opportunity to bury a body. He also suggests Steven knew Penny Dupree, Gilford's wife. Steven denies everything but is taken to the station. Nick privately warns Finlay that Tran could connect the Dupree case to the bodies on Steven's farm, unraveling secrets that would implicate her and Vero.

Finlay drives to Penny's house to confront her directly. Penny admits she slept with Steven, citing an intimate detail that seems to confirm her claim, and says Tran learned of the affair from an anonymous tip called into a true-crime podcast. Back home, Vero points out the detail Penny cited was widely known among neighborhood mothers, and Finlay realizes Penny's appearance had been curated to resemble Steven's ex-fiancée, making the affair story more plausible. To identify the tipster, Finlay and Vero lure the podcasters, Riley Bernbaum and Max Sievers, to a remote barn at one in the morning and extract a key detail: the anonymous caller was a woman Max suspects was Penny herself. Finlay now believes Penny framed Steven but still lacks proof of a connection between Penny and Mrs. Haggerty.

Finlay deepens her relationship with Nick, who shares a copy of the Dupree case file confirming Tran's focus on Steven. She also discovers Brendan has vanished. Cameron, an 18-year-old former hacker Finlay has been mentoring—who has recently been chauffeuring Mrs. Haggerty around in her late husband's vintage Lincoln—traces Brendan's flight to Florida and finds he emptied his savings. In Brendan's closet, Finlay finds newspaper clippings about Gilford Dupree covered in frantic marginal notes, suggesting Brendan was trying to solve the case or stay ahead of the investigation.

When Steven assaults Tran during interrogation after being deliberately provoked, he is charged with assaulting a police officer. Tran then pulls Finlay into an interrogation room, noting parallels between her novels and the Dupree case. Nick and his partner Joey Balafonte extract her before she can incriminate herself. Nick decides to help investigate and searches Mrs. Haggerty's house with Finlay. She finds old neighborhood watch diaries but notices the most recent one, covering the period of Harris Mickler's death, is missing. She also discovers a dog-eared copy of The Tuesday Club Murders by Agatha Christie and recognizes it as the same book she saw in Penny's closet.

Finlay and Vero verify through the local library that a book club read The Tuesday Club Murders in May of the year Gilford vanished, placing both Penny and Mrs. Haggerty in the same club and proving they lied about not knowing each other. Finlay has Cam trace license plates from Mrs. Haggerty's current book club meetings and researches each member, discovering they include a nurse practitioner, an employee at the Office of Vital Records who runs an engraving business, a vet tech at an animal shelter, a commercial cleaning company owner, and a flower shop owner with a refrigerated delivery truck. None of the women are married. At a meeting, Finlay watches the women welcome Sally Mullen, a nervous new member whose husband Robert is controlling and violent, with specific gifts: a bag of animal cremains, a keepsake box, a death certificate, and a copy of The Tuesday Club Murders.

The full picture emerges when Finlay finds Patricia Mickler, the woman who originally tried to hire her to kill Harris, working at the animal shelter. Patricia reveals that Mrs. Haggerty once approached her under a false name, listened to her story about her abusive husband, then said she and her friends "couldn't help" and directed Patricia toward an anonymous online forum for women with "problem husbands." Finlay realizes each book club member fills a specific role in a criminal operation that eliminates abusive husbands: forging medical records, printing death certificates, supplying cremains for memorial urns, cleaning crime scenes, and transporting bodies in a refrigerated truck. The gifts for Sally are not symbolic gestures but operational tools. Robert is the club's next target.

That night, Finlay and Vero stake out Sally's house. The book club arrives after midnight and carries a body-shaped bundle from the house. Vero, who climbed into the refrigerated truck to investigate, is locked inside when the convoy departs. Finlay follows to a remote cabin and frees Vero, but the book club catches them. At gunpoint, the women debate what to do. Penny then emerges from inside the cabin and announces she is ready to confess. She explains that Gilford was abusive. When she tried to flee, he caught her packing and she struck him with a garden shovel. She drove to Mrs. Haggerty's house, where the two women buried the body in the freshly installed rose garden. Mrs. Haggerty admits the plan to frame Steven was her idea and uses her missing neighborhood watch diary, which documents Finlay and Vero's own crimes, as leverage to ensure their silence about the club, before handing Vero the keys to her Lincoln so Vero can return it to Cam.

Penny and Mrs. Haggerty turn themselves in with coordinated confessions that protect the other members. Nick and Joey pressure Tran to release Steven. In a pivotal scene, Finlay confesses everything to Nick: Harris Mickler's death, the burial, all of it. Nick responds by affirming his love.

Steven is released and reunited with his children. Mrs. Haggerty, now wearing a bedazzled ankle monitor, reveals she sent Brendan on a cruise to keep him away. Sylvia discovers Mrs. Haggerty's diaries and signs on as her literary agent. Finlay notices the diary pages covering the months of Harris Mickler's murder have been removed, confirming Mrs. Haggerty's bargain: silence for silence. As Finlay and Vero celebrate, two officers arrive with a warrant. They address Vero by her real name, Veronica Ramirez, and inform her that a stolen vehicle report for Mrs. Haggerty's Lincoln—filed by Cam after Vero forgot to return it to him—triggered a search uncovering her outstanding warrant for theft in Maryland. Vero tells Finlay she is being extradited, ending the novel on a cliffhanger.