Saltwater

The Lingate family, heirs to a California oil fortune, returns every July to a villa on the Italian island of Capri, where Sarah Lingate, a Pulitzer Prize-nominated playwright, was found dead at the base of a cliff in 1992. The novel alternates between Helen Lingate's present-day narration, Lorna Moreno's account of the days before her own disappearance, and flashbacks to Sarah's final days, gradually exposing three decades of secrets, affairs, and murder.

Helen, Sarah's daughter, wakes on the thirtieth anniversary of her mother's death to find that Lorna has not returned to the villa. The two women had been co-conspirators in a blackmail scheme. When a gold snake necklace that once belonged to Sarah arrived at the Los Angeles office of Marcus Lingate, Helen's uncle, Helen saw an opportunity. She and Lorna sent the necklace to the family's Capri villa with a typed letter demanding ten million euros. They enlisted Ciro, the villa caretaker Renata's son and Helen's secret lover, to mail the package from Naples. The plan called for the family to task Lorna with delivering the ransom money, which the two women would split, giving Helen the means to escape her family's suffocating control.

That control has defined Helen's life. Her father, Richard Lingate, monitored her movements and restricted her independence. When Helen gave an unauthorized college interview about her mother's death, Marcus killed the story through his media connections, and Helen was forced to withdraw from USC. Richard also liquidated a trust Sarah had established for Helen, worth nearly two million dollars.

Lorna's narration reveals a woman running multiple schemes. She spent years on the fringes of Los Angeles wealth, attending events on yachts and in mansions. Stan Markowitz, a tech billionaire fixated on Sarah's death, knows about Lorna's past and pressures her to gather information from inside Marcus's office, threatening exposure if she refuses. Lorna has also been sleeping with Freddy, Helen's boyfriend, a secret predating her friendship with Helen.

Chapters narrated by Sarah in 1992 reveal the backstory. A playwright with a Whiting Award and a Guggenheim Fellowship, Sarah married Richard after a six-month courtship and moved to Los Angeles when his father fell ill. Isolated from her artistic community, she eventually produced Saltwater, a play about a wealthy family that has secretly lost its fortune. Richard saw himself on the page and had his attorneys issue a cease-and-desist before the family left for Capri.

On Capri, Sarah shoots Richard in the calf with a speargun while diving, a wound requiring nearly twenty stitches. Her narration reveals she has been fantasizing about his disappearance moments before. Sarah has also been having an affair with Marcus: Helen is Marcus's biological daughter, not Richard's. The affair ended when Helen was born. Sarah tells Marcus she wants a divorce; he agrees, provided Richard never learns about the affair.

In the present day, Helen opens the necklace package at the villa and performs surprise convincingly, while Marcus pockets the ransom note and Richard grows pale. Helen wears the necklace as a provocation throughout the trip. At dinner on Stan's yacht, Il Fallimento, Stan needles the family by referencing Marcus's past pursuit of Sarah. Naomi, Marcus's wife, storms from the table.

That night, Marcus returns with the money. Helen confirms the plan: Lorna will take the bag to Naples. But after leaving a nightclub alone, Lorna walks toward the marina and never reaches the charter boat. Helen's search of Lorna's room yields a laptop wiped clean of files and a manila envelope containing the manuscript of Saltwater. The carabinieri, Italy's national police force, recover a body from an inlet below the Villa Jovis, the ruins of the Roman emperor Tiberius's cliff-top palace. They reveal the victim was four to five weeks pregnant.

The novel reconstructs the night Sarah died through three perspectives. Richard confesses to Marcus that he followed Sarah, argued about the divorce, and pushed her on a steep slope, leaving her for dead. Marcus finds Sarah alive and walks her back toward the villa, but passing tourists ignore her pleas for help. At the villa gate, Naomi is waiting. Left alone with Sarah by the garden wall when Marcus goes inside to intercept Richard, Naomi pushes Sarah over the low stone wall and off the cliff.

At a ballet on the private island of Gallo Lungo, Helen hands Richard the pages of Saltwater. Richard reveals the play struck too close to the truth: The Lingate fortune was gone, squandered by his grandfather, and the family had survived on Naomi's wealth for decades. A divorce filing would have exposed everything. Helen then reveals the affair. Richard, who never knew Helen was not his biological daughter, attacks Marcus. In the scuffle, a bystander stumbles into Marcus, who topples over a low wall and falls to his death. The carabinieri, arriving by boat as Helen arranged, arrest Richard.

Richard pleads guilty. Naomi, confined to the villa on pills and alcohol, confesses to Helen that she pushed Sarah and pressured Marcus into killing Lorna by threatening to cut off the family's access to her money. Helen drops Naomi's pills into a glass of vodka and serves it to her. Naomi dies, and the police rule it a suicide. Helen inherits Naomi's estate.

The novel's penultimate chapter delivers its most dramatic revelation. The woman the family has known for thirty years as Renata, the villa's caretaker, narrates in Sarah's voice. On the night of the murder, the real Renata came to the garden and found Sarah injured. She helped Sarah toward the caretaker's cottage, but before Renata could follow, Naomi, mistaking Renata's blond hair and red dress for Sarah's in the dark, pushed Renata off the cliff instead. Sarah watched from behind fig trees, then escaped into Renata's house and assumed her identity. When Marcus identified the disfigured body as Sarah's, the deception became permanent. For thirty years, Sarah lived on Capri as "Renata," babysitting Helen one week per year while the Lingates never recognized her. She sent the necklace to Marcus to force a reckoning after watching her daughter diminished by the family's control.

In the final chapter, Lorna narrates from her new life, revealing she too is alive. On the night of her disappearance, after Marcus left her at the marina, Lorna encountered Martina, one of Stan's young companions, waiting for a ride. Lorna drove a boat to a remote inlet and pushed Martina overboard. Martina could not swim and drowned, her body later mistaken for Lorna's. Lorna caught a ferry to Naples, deposited the ten million euros in a Swiss bank, and built a new identity. She reflects that girls like Martina and herself are interchangeable to the wealthy. In the final scene, Lorna and Helen lock eyes across a Milan street before a passing tram separates them and Lorna vanishes.