EL PROBLEMA FINAL. Cristina Kovani as Vicky, Daniel Holguin as Gerard, Gonzalo de Castro as Fonseca, in episode 03 of EL PROBLEMA FINAL. Cr. Lander Larrañaga/Netflix © 2025
A long time in the making, Netflix’s brand new five-episode miniseries, The Final Problem, based on Arturo Pérez-Reverte’s bestselling novel, has officially set a September 25, 2026 release date. Here’s everything we know about The Final Problem on Netflix, including the plot, cast, and first look images.
The series is produced by Fernando Bovaira (Mientras dure la guerra, La Fortuna) for Mod Producciones, with Urko Errazquin (El campeón, La vida padre) serving as executive producer. Alberto Macías, Carlos Molinero, and Marisol Farré adapt the screenplay, while Félix Viscarret (Una vida no tan simple, Don’t Look into Their Eyes) directs.
When is The Final Problem coming to Netflix?
It has finally been confirmed that The Final Problem will be released on Netflix on September 25, 2026.
A date announcement trailer for the series has been released on Netflix’s official YouTube channel.
What is the plot of The Final Problem?
Netflix has released a full, detailed synopsis for the series:
“In the spring of 1959, thirteen people find themselves stranded by a violent storm on a small island off the coast of Mallorca. No one could imagine what is about to unfold at the secluded hotel where they are staying: Elisa Mander, a quiet English tourist, is found dead. What initially appears to be a suicide soon reveals itself to be something far more disturbing a murder.
Basil (Jose Coronado), a retired actor who once portrayed Sherlock Holmes on the big screen, unexpectedly finds himself taking on the role of investigator. As suspicion spreads among the guest, including Adela Figueroa (María Valverde), a mysterious young woman travelling with a friend, he joins forces with Foxá (Martiño Rivas), an aspiring thriller writer, to search every corner of the luxurious hotel for answers, all while testing the composure of Mrs. Ausländer (Maribel Verdú), the hotel’s manager.”
Who are the cast members of The Final Problem?
Leading the ensemble cast is José Coronado (Entrevías, The Snow Girl, Living Without Permission) as Basil, with María Valverde (We Were Songs) bringing depth to Elisa Mander’s enigmatic presence. Martiño Rivas (Cable Girls) joins alongside Maribel Verdú (When Nobody Sees Us, Now and Then), Gonzalo de Castro (Politically Incorrect, Tenderness), Cristina Kovani (The Silence, Hunting: Guadiana), José Condessa (Cocoa, Rabo de Peixe), and Pepón Nieto (Smiley, The Never Seen), among others.
First Look Images of The Final Problem
EL PROBLEMA FINAL. Jose Coronado as Basil in episode 01 of EL PROBLEMA FINAL. Cr. Txuca Pereira/Netflix © 2025
EL PROBLEMA FINAL. Martiño Rivas as Foxa in episode 01 of EL PROBLEMA FINAL. Cr. Lander Larrañaga/Netflix © 2025
EL PROBLEMA FINAL. Maria Valverde as Adela in episode 05 of EL PROBLEMA FINAL. Cr. Lander Larrañaga/Netflix © 2025
EL PROBLEMA FINAL. Jose Condessa as Toni, Cristina Kovani as Vicky, Jose Coronado as Basil, Gonzalo de Castro as Fonseca, Almudena Salort as Catalina in episode 01 of EL PROBLEMA FINAL. Cr. Quim Vives/Netflix © 2025
EL PROBLEMA FINAL. Maribel Verdu as Auslander, in episode 03 of EL PROBLEMA FINAL. Cr. Lander Larrañaga/Netflix © 2025
EL PROBLEMA FINAL. Cristina Kovani as Vicky, in episode 01 of EL PROBLEMA FINAL. Cr. Lander Larrañaga/Netflix © 2025
EL PROBLEMA FINAL. Maria Valverde as Adela, Jose Coronado as Basil in episode 04 of EL PROBLEMA FINAL. Cr. Lander Larrañaga/Netflix © 2025
EL PROBLEMA FINAL. Jose Coronado as Basil, Gonzalo de Castro as Fonseca, Maribel Verdu as Auslander, Martiño Rivas as Foxa, Pepon Nieto as Seruya in episode 01 of EL PROBLEMA FINAL. Cr. Lander Larrañaga/Netflix © 2025
EL PROBLEMA FINAL. Maribel Verdu as Auslander, Martiño Rivas as Foxa, Pepon Nieto as Seruya, Gonzalo de Castro as Fonseca, Jose Coronado as Basil in episode 01 of EL PROBLEMA FINAL. Cr. Lander Larrañaga/Netflix © 2025
EL PROBLEMA FINAL. Maria Valverde as Adela, Jose Coronado as Basil in episode 05 of EL PROBLEMA FINAL. Cr. Lander Larrañaga/Netflix © 2025
EL PROBLEMA FINAL. Jose Condessa as Toni, Almudena Salort as Catalina, in episode 03 of EL PROBLEMA FINAL. Cr. Lander Larrañaga/Netflix © 2025
Behind-the-scenes images of The Final Problem
In addition to new character pictures released today, Netflix also released a bunch of first-look behind-the-scenes photos of the cast and crew in action:
Are you looking forward to The Final Problem on Netflix? Let us know in the comments.
