What Is Apple TV’s ‘Nocturne’ Based On? The Bestselling Nordic Thrillers Behind the Crime Series
In recent years, streaming platforms have increasingly turned to international literary hits to satisfy the viewing public’s insatiable appetite for prestige psychological thrillers. Apple TV in particular has distinguished itself by curating high-gloss, slow-burning mystery sagas that balance atmospheric dread with deeply flawed protagonists. These serialized investigations prioritize moody aesthetic worldbuilding and intricate character studies over tidy, episodic resolutions.
The arrival of the dark crime series ‘Nocturne‘ marks the latest high-profile entry in that brooding lineage. Starring Liev Schreiber alongside Zazie Beetz and Stephen Graham, the production immediately captures viewers with its claustrophobic psychiatric ward setting and chilling abduction case. While the grim procedural unfolds across an atmospheric American backdrop, its narrative foundations actually originated thousands of miles away across the Atlantic Ocean.
In reality, ‘Nocturne’ is based on the internationally bestselling series of crime novels written under the collective pen name Lars Kepler. Specifically, the 10-episode season primarily adapts the 2012 mystery thriller ‘The Sandman’, while weaving in critical thematic elements from its 2018 companion novel ‘Lazarus’. Behind the Lars Kepler pseudonym is the celebrated Swedish husband-and-wife writing team of Alexander Ahndoril and Alexandra Coelho Ahndoril.
The Literary Legacy of Lars Kepler and Detective Joona Linna
Across 11 published books, the Ahndorils’ Lars Kepler series centers on Detective Inspector Joona Linna, an observant Finnish-Swedish investigator working for Sweden’s National Criminal Police. In the acclaimed novel ‘The Sandman’, Linna confronts his ultimate nemesis in Jurek Walter, a sadistic killer who buried multiple young victims alive in soundproofed wooden coffins before being captured and sealed in a maximum-security psychiatric wing. The cold case reignites years later when an abducted boy miraculously stumbles out of the Swedish wilderness.

Because the boy’s sister remains unaccounted for, Linna orchestrates a high-stakes undercover gambit by sending fellow operative Saga Bauer directly into the psychiatric facility as an inmate to extract the burial location from Walter. The literary dynamic between the cunning killer and his interrogator earned international acclaim for mirroring the psychological games of ‘The Silence of the Lambs’. That nerve-shredding literary chess match provided showrunners with the precise blueprint needed for an episodic screen adaptation.
Translating Scandinavian Bleakness to Western Pennsylvania
Rather than shooting along the freezing coastlines and icy waterways of Stockholm, creator Rowan Joffé and co-showrunner John Hlavin made the deliberate decision to transplant the narrative into the rural expanse of Western Pennsylvania. The production filmed throughout Allegheny, Beaver, and Butler counties, establishing the fictional small community of Fairhaven just northwest of Pittsburgh. The creative team found that the Appalachian terrain effortlessly mirrored the isolated, forested atmosphere of Scandinavian noir.
Co-showrunner John Hlavin explained that Western Pennsylvania’s geography provided an intuitive match, noting that “Swedish noir and Scandi noir maps most directly to Western Pennsylvania because of the 16 million acres of woods in the state, because of the way the sun travels through the canopy of trees, because of the ruralness of so much of the state, because of the private nature of a lot of its residents and people that keep to themselves,” in an interview with TribLIVE. By replacing icy Scandinavian tundras with dense Appalachian foliage, the creative team maintained the source material’s pervasive sense of isolation.
Retooling Iconic Characters for American Noir
To facilitate the American setting, the creative team retooled the names and backgrounds of the book’s core investigative figures. Joona Linna became Jonah Lynn, reimagined through Schreiber’s grizzled performance as a retired Philadelphia homicide detective and military veteran living a solitary life after losing his family in an automobile collision. Saga Bauer, played with intense vulnerability by Beetz, was reframed as an undercover FBI agent who shares a protective surrogate father-daughter bond with Jonah.
The project moved through several development phases before landing on its official moniker, as Deadline reported when the network solidified its global autumn release window.
Emmy-winning director Tim Van Patten stepped behind the camera to direct the initial two installments, establishing a grim visual language anchored by Stephen Graham’s unsettling portrayal of Walter whispering lethal suggestions to adjacent psychiatric inmates. Supporting players including Rory Culkin, Chrissy Metz, and Bill Camp further anchor the European narrative inside domestic law enforcement culture.
Despite the American setting and modified backstories, ‘Nocturne’ retains the terrifying heartbeat of Lars Kepler’s original prose. The urgent search for a buried victim and the suffocating mental manipulation inside the asylum preserve the existential weight that made the Swedish novels international blockbusters. By bridging Scandinavian noir with American regional realism, the series successfully brings one of Europe’s most famous literary thrillers to a whole new audience.
Share your thoughts in the comments below on whether the American setting of ‘Nocturne’ does justice to Lars Kepler’s chilling Swedish novels!

