The Secret Lives of Murderers’ Wives is told mainly in third-person limited, moving between Beverley Lightfoot, Margot Green, and Elsie Parker, three women whose lives are forever linked by the horrifying discovery that each was married to a murderer.

Their stories are interrupted by short, italicized sections labeled “Days Missing.” These chapters switch to first person and follow an unidentified woman being held captive in a dark basement. Her identity—and the person responsible for keeping her there—doesn’t become clear until the mystery is nearly solved.

Three Murderers’ Wives

California is baking under a brutal summer heat wave in 1966 when Beverley Lightfoot, Margot Green, and Elsie Parker find themselves pulled back into the kind of nightmare they thought they had escaped five years earlier.

All three were once married to killers. Beverley’s ex-husband, Henry Lightfoot, became infamous as the “Heatwave Killer” after murdering seven women in the Bay Area. Margot’s wealthy politician husband, Stephen Green, murdered eight people before killing himself in jail. Elsie’s husband, Albert Moss, murdered several women, including his student Lucy Glass, whose body he concealed in the crawl space beneath their home.

The women became friends after their husbands’ crimes turned them into public spectacles. They were blamed, mocked, and treated as though they should somehow have known what the men closest to them were capable of doing. Eventually, they made a pact: no contact with their murderous husbands and no allowing those men to control the rest of their lives.

Beverley is the one having the hardest time keeping that promise.

On July 3, she attends an LAPD gala at the urging of Chief Tom Cornwell, the ambitious police official who helped bring Henry down. Beverley publicly discusses cooperating with the investigation into her husband, while privately hiding something that could cause another scandal: she has been having a years-long affair with Detective Roger Greaves, the handsome detective who helped arrest Henry.

Roger is married to Enid Greaves, although Beverley has been led to believe their marriage is essentially over.

The gala is interrupted when Roger and Cornwell are called to a murder scene. Twenty-one-year-old track athlete Cheryl Jean Herrera has been strangled. Her killer has put a synthetic blond wig over her dark hair and driven an arrow through her eye.

Then another young woman dies.

Twenty-year-old cheerleader Emily Roswell is pulled from a lake at the Meadow Vine Golf Course. She has been stabbed repeatedly, and the words “LOVE” and “HATE” have been crudely tattooed across her knuckles.

Someone is killing young women again, and Beverley, Margot, and Elsie know better than most how dangerous it can be when everyone is looking in the wrong direction.

The Women Start Investigating

The police quickly push the theory that Cheryl’s death was connected to a gang called the Kings. Elsie and Margot don’t buy it. Beverley wants nothing to do with another murder investigation, but her friends convince her that their experiences with Henry, Stephen, and Albert have given them an understanding of killers that most people simply don’t have.

Each woman begins following her own leads.

Elsie works at the Los Angeles Signal as an assistant to the sexist editor Paul Hunter, but she wants to become a real reporter. She finds an ally in Patti Fowler, a confident journalist who takes Elsie seriously and encourages her instincts. Elsie visits Cheryl’s grieving father, Mr. Herrera, and learns that Cheryl’s silver bracelet, engraved with the initials “CJH,” disappeared when she was murdered. Elsie also notices a suspicious man watching the mourners from a utility van and sketches the blurry logo she sees on its side.

Margot investigates another missing young woman, Diane Howard Murray, a twenty-one-year-old model from the poor Golden Point neighborhood. A local dealer named Ray Roberts points her toward Diane’s grandmother, Pearl, who reveals that Diane was strangled and then dressed in an expensive coat and suspenders before being posed like a mannequin.

Margot learns that Diane had been corresponding with predatory Hollywood director Mason Clarke and sneaks into one of his parties to confront him. Clarke seems like exactly the kind of man who could be responsible, but his alibi destroys the theory: he was in Capri during all three murders.

Beverley takes a more dangerous route. She has become terrified that her seven-year-old son, Benjamin, might have inherited something violent from Henry, especially because the boy has begun sleepwalking and struggling emotionally. Desperate for reassurance, she secretly visits Henry at San Quentin, breaking the pact she made with Margot and Elsie.

Henry enjoys having Beverley come back to him. He taunts her, but he also offers his assessment of the new murderer. This killer hates women, Henry says, but he is also performing for an audience. The elaborate staging of the bodies is deliberate. He is pushing boundaries and trying to create something “poetic” with his crimes.

Soon afterward, Beverley discovers a slaughtered pig on her lawn, its throat cut. Whether it is connected to the murders or meant simply to terrify her, the message is clear: Beverley is no longer observing the danger from a safe distance.

The Police Are Hiding Something

Elsie and Patti eventually connect the logo on the suspicious van to the cleaning company that employed Diane. The company belongs to Sean Wilson, who cleans local athletic facilities, making him another possible suspect.

Their digging also exposes something much bigger inside the police department.

Roger quietly encourages Elsie to investigate Chief Cornwell’s expensive anti-gang surveillance program. She and Patti discover that the equipment is being supplied by Broderick Arnold, Cornwell’s brother-in-law—and Margot’s wealthy boss and lover at Arnold’s Department Store.

Cornwell has been pouring public money into a program that financially benefits his own family. Even worse, he has an incentive to keep blaming the Kings for violent crimes because doing so justifies the continued spending. His corruption has helped steer attention away from the possibility that a serial killer is operating in California.

The women also visit a church café in Calabasas run by Betty, who provides a safe haven for vulnerable young women. Betty keeps a “Beware Book” containing descriptions of dangerous men her girls have encountered, and she allows Elsie to borrow pages from it in case they prove useful.

The more immediate breakthrough comes from Beverley. Appearing on the live television program The California Day, she abandons the safe statement she was supposed to deliver and instead warns women watching at home to lock their doors and pay attention to the men in their lives.

Her warning reaches Sharon Farrer, who writes to Beverley because she is frightened of her husband, Hank. Beverley meets Sharon at a diner, where Sharon describes Hank’s increasingly volatile and abusive behavior, including forcing her to scrub her face raw while he watches. Then she produces something far more alarming: the silver “CJH” bracelet that belonged to murdered track athlete Cheryl Jean Herrera. Sharon found it near the brake pedal of Hank’s truck.

The Wrong Farrer

Beverley immediately takes the bracelet to Elsie and Margot, and the three women visit the Farrer home to learn more. Before they leave, Elsie asks Sharon for Hank’s license plate number.

Back at her apartment, Elsie remembers the pages she borrowed from Betty’s “Beware Book” and begins cross-referencing its entries. Hank’s license plate appears in the book under a false name, connecting him to a previous violent encounter involving erotic asphyxiation.

Now the women have two disturbing pieces of evidence pointing toward the same man: Cheryl’s missing bracelet was found inside Hank’s truck, and his license plate appears in a private record of men known for dangerous behavior toward women. Combined with Sharon’s account of his abuse, it seems almost impossible to dismiss as coincidence.

Convinced that Hank Farrer may be the killer, Beverley, Margot, and Elsie begin staking out his garage.

Then Kate McKenzie, a talented young horse rider and musician, is murdered in her shower while Hank is at the garage under their surveillance.

Hank cannot be the killer.

Their mistake nearly gets them killed when Hank discovers them watching him and pulls a gun. They escape, but the investigation has also damaged their friendship. Margot and Elsie discover that Beverley has been secretly visiting Henry and are furious that she broke their pact.

At the same time, another victim appears. Sarah Gunn, a wealthy young majorette, is found hanging from a hook on her parents’ porch.

The murders are becoming increasingly theatrical, but no one has figured out why.

The Movie Connection

The breakthrough comes from an unexpected source.

Roger accidentally leaves a Polaroid photograph at Beverley’s house. It shows the scene of Kate McKenzie’s murder, and in the photo, Beverley notices a distinctive Polaroid camera with a checked strap lying in the grass.

She has seen that camera before. It belongs to Sharon and Hank’s teenage son, Peter Farrer, an aspiring filmmaker.

Suddenly, Peter looks like the perfect suspect. He loves movies, has access to the camera found at a crime scene, and could potentially explain why the murders have such an elaborate visual quality.

Beverley takes the details to her elderly neighbor, Christopher Appleton, a former Warner Brothers props employee and devoted movie fan. Christopher immediately recognizes what everyone else has missed.

The murders are recreating scenes and images from films.

Kate’s shower murder echoes Psycho. Sarah hanging from a hook resembles On the Waterfront. The words “LOVE” and “HATE” on Emily’s knuckles come from The Night of the Hunter. Cheryl’s arrow through the eye points to Eye of the Devil. Diane’s carefully arranged clothing resembles the imagery of Blood and Black Lace.

Beverley, Margot, and Elsie reconcile long enough to act on what seems like the answer. Peter is a young cinephile, and everything appears designed around his obsession with movies.

They race to the Farrer house to warn Sharon.

Instead, Sharon tells them something that turns the entire case around.

Peter didn’t lose his Polaroid camera.

The police confiscated it weeks ago.

And the detective who took Peter’s camera and the family’s fingerprints was Roger Greaves.

Roger Greaves Is the Killer

Sharon’s revelation about Peter’s camera makes everything fall into place. Peter Farrer never lost the Polaroid camera found at Kate McKenzie’s murder scene. Detective Roger Greaves had confiscated it weeks earlier, along with the Farrers’ fingerprints. If the camera later turned up beside a victim, Peter couldn’t have put it there. Roger had.

Beverley finally sees what Roger has been doing. Frustrated by being repeatedly passed over for promotion, he decided to manufacture the kind of spectacular serial-killer case that could make his career. He would commit the murders himself, build the evidence around an innocent suspect, and then become the celebrated detective who solved the “crime of the decade.”

Peter was an ideal person to frame. Roger regularly brought LAPD patrol cars to Hank Farrer’s garage for repairs, giving him access to the family and their vehicles. During those visits, he noticed that Peter was a moody teenager obsessed with movies and determined to become a filmmaker. Roger then designed the murders around famous films so that, once Peter was identified as the suspect, his interest in cinema would appear to explain the bizarre staging of the bodies.

Roger had been planting evidence against the Farrers all along. He stole Peter’s Polaroid camera and eventually left it at Kate McKenzie’s murder scene. He also took the silver “CJH” bracelet belonging to Cheryl Jean Herrera and tossed it near the brake pedal of Hank’s truck, apparently assuming that Hank and Peter shared the family vehicles. That was why Sharon had found such damning evidence in her husband’s truck. Hank really was violent and abusive, but the physical evidence connecting his family to the serial murders had been deliberately planted.

Beverley, Margot, and Elsie break into Roger’s house looking for proof and discover a hidden room filled with his plans and crime-scene sketches. Then they hear a scratching sound coming from behind a locked door near the kitchen.

They force their way through and descend into the basement, where they finally discover what happened to Roger’s missing wife, Enid Greaves. She is the unidentified captive whose ordeal has been unfolding throughout the novel in the “Days Missing” chapters.

Enid is emaciated, gagged, and bound to a pipe with cable ties. She had begun to suspect Roger weeks earlier after realizing that one of her Burberry trench coats was missing. Roger had taken the coat to use when staging Diane Howard Murray’s body. When Enid confronted him about it, he beat her and imprisoned her in the basement rather than risk having her expose him.

Elsie uses a pair of garden shears to begin cutting Enid free, but before the women can get her out of the house, Roger comes home.

He attacks Elsie at the top of the basement stairs and knocks her unconscious. Beverley is trapped below with Roger, who no longer has any reason to hide what he is. He corners her and raises the heavy garden shears, preparing to kill her.

But Roger has underestimated Enid.

Despite being starved, beaten, and imprisoned for weeks, she has managed to get hold of his gun. Enid points it at her husband and shoots him in the chest, stopping him before he can kill Beverley.

The detective who engineered an entire serial-killer investigation around his ability to manipulate evidence and outthink everyone around him is ultimately brought down inside his own home by the wife he thought he had successfully silenced.

Six Months Later

Roger survives the shooting and accepts a plea deal that will keep him imprisoned for life while sparing Enid from having to endure a public trial. Later, Beverley receives a card from Enid containing only one word: strength.

The three friends finally begin moving beyond the men who once defined their lives.

Elsie becomes a crime reporter at the Los Angeles Signal, with Patti continuing to support her career. Her writing about the murdered women is being turned into a book. Margot begins therapy and starts seeing someone new.

Beverley also begins releasing the fear she has carried since discovering what Henry was.

Six months after Roger’s capture, she gathers with Margot, Elsie, and Christopher in her yard for mimosas. Her children are nearby, laughing and playing.

Beverley brings out the scrapbook in which she has obsessively collected newspaper clippings about crimes for years. It has been her way of watching for danger and trying to understand how she failed to recognize what Henry was capable of doing.

She no longer wants it.

Beverley throws the scrapbook into the fire and watches it burn, finally allowing the record of all that fear and guilt to disappear into smoke.