Gone for Good

Three days before her death, Will Klein's mother, Sunny, tells him that his older brother Ken is still alive. Will dismisses the claim as morphine-induced confusion. Eleven years earlier, in the suburban New Jersey town of Livingston, Ken became the prime suspect in the rape and murder of Julie Miller, Will's former girlfriend, whose body was found strangled at her family home. Ken vanished and has been a fugitive ever since. Will has long believed his brother is dead.

After Sunny's funeral, the Klein family sits shivah, the Jewish mourning period, in near-total isolation; the community has shunned them for over a decade. Will lives in New York City with his girlfriend, Sheila Rogers, a volunteer at Covenant House, the shelter for runaways where Will works as a senior director. Sheila has shared almost nothing about her past. While sorting through Sunny's belongings, Will discovers a photograph hidden in a frame, date-stamped less than two years ago, showing Ken in hiking gear on a mountainside. His sister, Melissa, reacts with cold detachment when Will shows her and refuses further involvement.

Shortly after, Sheila disappears, leaving only a note: "Love you always." FBI agents arrive at Covenant House revealing she has a criminal record including prostitution and drug charges. Will's closest friend, Squares, the founder of a yoga empire who also runs the Covenant House outreach van, leverages his connections to deflect the agents. Assistant Director in Charge Joseph Pistillo, the FBI's top official on the East Coast, summons Will and shows him crime-scene photos from a double murder in Albuquerque, New Mexico, where Sheila's fingerprints were found.

Meanwhile, Philip McGuane, a powerful organized crime figure who grew up with Ken, meets with John Asselta, a chillingly efficient killer nicknamed "the Ghost" and another member of their high school circle. McGuane reveals that Ken killed two men he sent to New Mexico. The Ghost offers to track Ken down, starting with Will.

Will investigates Sheila's past. Her mother, Edna Rogers, in Idaho, mentions Sheila's daughter, Carly, and asks Will if he knows where she is. Will has never heard the name. Katy Miller, Julie's 18-year-old sister, contacts Will and claims she saw Ken at Julie's grave, where he proclaimed his innocence and vowed to find the real killer. She asks to help investigate, and Will agrees. Through street contacts, Will and Squares learn Sheila was recruited at 16 by a pimp at the Port Authority, drugged, raped, and forced into prostitution before eventually connecting with bigger criminal players.

The Ghost breaks into Will's apartment, assaults him, breaks his nose, and warns that people Will loves will be hurt unless Ken stops hiding. Then Pistillo delivers devastating news: Sheila Rogers has been found dead in Nebraska, tortured and murdered. Will discovers the engagement ring he bought weeks earlier, which he never had the chance to give her. Grief gives way to resolve: He will find Sheila's killer and locate Carly, the daughter Edna mentioned.

At a memorial service for Sheila, Edna arrives and reveals that Sheila had a 12-year-old daughter named Carly. She asks Will to help find her granddaughter. Katy then discovers a sorority booklet in her family's basement showing that Sheila and Julie were roommates at Haverton College in Connecticut. Will and Katy visit the sorority's retired housemother, Rose Baker, who reveals that another sorority sister, Laura Emerson, was strangled in North Dakota eight months before Julie's murder. When Baker reported the connection to the FBI, they ordered her to keep quiet.

An intruder handcuffs Will to his bed one night and attacks Katy in the next room. Will frees himself and fires a gun at the attacker, who flees. Katy survives but is badly injured. Will is charged with attempted murder but released on bail after Katy clears him.

Through Squares's connections, Will obtains security footage from a store near the New Mexico murder scene and recognizes the customer as Ken, living under the name Owen Enfield. Pistillo then reveals the full history: Eleven years ago, Ken worked for McGuane in organized crime. The FBI turned Ken into an informant, but McGuane discovered the betrayal and Ken fled. Four months ago, the FBI recaptured Ken and placed him in witness protection in New Mexico. McGuane found Ken through a leak and sent men who tortured the real Sheila Rogers before Ken killed them and fled again. Pistillo believes Will's girlfriend was a plant working for McGuane who betrayed Ken's location.

Will and Squares fly to Idaho for Sheila Rogers's funeral. At the chapel, Will views the open casket and is stunned: The dead woman is a stranger. The woman he loved was not Sheila Rogers. Will tracks her to a Manhattan hotel using a fake identity she purchased from an underground service. She reveals her real name is Nora Spring, a survivor of domestic abuse who fled her husband, a police officer in Missouri. In Stockholm, Nora met the real Sheila Rogers, Ken, and their daughter Carly, and the two women switched identities for mutual protection. Nora sought out Will in New York because Ken had spoken of him constantly, and she fell in love with him at Covenant House. She also confesses she gave Sunny the hidden photograph of Ken.

The Ghost kidnaps Katy and forces Will to message Ken, demanding he come to a secluded meeting spot. Will frees Katy, and they escape. McGuane is arrested after an anonymous package containing surveillance footage and incriminating evidence arrives at FBI headquarters.

Will, his father, and Melissa arrange a reunion with Ken at a remote farmhouse in Massachusetts. Ken claims Julie was helping him smuggle evidence against McGuane and that the Ghost attacked them the night of the murder. But Will catches a discrepancy in Ken's story, and Katy steps out from behind a tree with a gun.

Katy reveals she lied about seeing Ken at the cemetery to gain Will's trust. She was six years old the night Julie died, hiding in the basement, and witnessed everything. Ken, not the Ghost, strangled Julie. Julie had refused to help Ken frame Asselta for Laura Emerson's murder, and when Ken learned Julie had warned the Ghost, he killed her in a rage. Katy partnered with the Ghost because the FBI let Ken walk free in exchange for testimony against McGuane, and she could not allow her sister's killer to escape justice.

Will's father dives at Katy to stop her from shooting and is hit in the leg. Will tackles Ken and wrestles away his gun. Sobbing, Ken makes Will promise to raise Carly with Nora and never let the child know about him. Ken surrenders to police.

Four days later, Will and Nora wait at Newark Airport for Carly's flight. The Ghost appears and delivers the novel's final revelation through autopsy files: The real Sheila Rogers never gave birth, while Julie's autopsy shows evidence of pregnancy. Carly is not Ken and Sheila's biological daughter but the daughter of Will and Julie, born six months before Julie was murdered. Ken took the child when he fled. The Ghost tells Will he returned to fulfill a vow to protect Julie's child. He also reveals that Ken, not Asselta, stabbed a neighborhood bully named Daniel Skinner when they were children—a killing long attributed to the Ghost—and that Will's father covered it up, explaining the elder Klein's lifelong guilt. The Ghost slips a newspaper clipping into Will's pocket and vanishes. Will goes to meet Nora and his daughter.

That night, Will reads the clipping: a report that Nora's abusive ex-husband was found strangled in his car. The Ghost has eliminated the last threat to their safety.