‘The Final Problem’ on Netflix: where was the series filmed? (hint: not in Mallorca)

Netflix releases “The Final Problem” on September 25, 2026, a period locked-room murder mystery adapted from the novel by Arturo Pérez-Reverte. The plot takes place in a small, isolated hotel on an islet off Mallorca in 1959. But the question everyone will be asking, as with the series “Oasis” this summer, is: where was the series actually filmed? Answer: not in Mallorca, but on the Costa Brava.

“The Final Problem”: the Netflix locked-room mystery arriving September 25

Led by a top-tier Spanish cast including José Coronado, María Valverde, Martiño Rivas, Maribel Verdú, Gonzalo de Castro, and Pepón Nieto, “The Final Problem” adapts one of Arturo Pérez-Reverte’s most popular novels. The pitch is an explicit homage: in the spring of 1959, a storm isolates thirteen people in a small hotel on an islet near Mallorca. When the body of Elisa Mander, a quiet English tourist, is discovered, what looks like a suicide soon turns out to be murder. A retired actor who once played Sherlock Holmes on screen becomes an impromptu investigator. Agatha Christie meets Conan Doyle in a locked-room mystery where every guest becomes a suspect.

Where was the series filmed? On the Costa Brava, not in Mallorca

It is the paradox of filming: the story takes place in the Balearic Islands, but the camera never left the mainland. Filming began in April 2025 in Lloret de Mar, on the Costa Brava, before continuing at the Netflix studios in Tres Cantos as well as in Madrid and Toledo. The Mallorcan islet of the novel is therefore a recreation: the exteriors were captured on the Catalan coast, while the period hotel interiors were built as studio sets.

The Santa Clotilde Gardens, Lloret’s open-air set

The identified filming location in Lloret de Mar is the Santa Clotilde Gardens, one of the most beautiful gardens on the Costa Brava. Designed in 1919 in the Italian Renaissance style, clinging to a cliff plunging into the Mediterranean, this listed garden features cypresses, monumental staircases, ponds, and statues, including its famous staircase flanked by bronze mermaids facing the sea. This spectacular backdrop has already seduced major productions: scenes from “House of the Dragon” and “The Empress” were filmed here. In short, a setting tailored for the hushed and eerie atmosphere of a period thriller. To extend the hotel series experience, discover also where the Netflix series “Oasis” was filmed.

Does the locked-room hotel really exist?

Unlike “Oasis”, whose fictional resort corresponded to a real five-star hotel in Tenerife, the hotel in “The Final Problem” is not an establishment you can book: it is a period set, blending Costa Brava exteriors with studio-reconstructed interiors. Maribel Verdú’s character, Mrs. Ausländer, manages the reception desk on screen. What can be visited, on the other hand, are indeed the Santa Clotilde Gardens, open to the public in Lloret de Mar, and the coastline surrounding them.

Where to stay near the filming locations in Lloret de Mar

A major seaside resort on the Costa Brava, Lloret de Mar offers a wide range of hotels just minutes from the Santa Clotilde Gardens and its coves. For anyone wishing to follow in the footsteps of the series, the town and neighboring Tossa de Mar make the ideal base, between beaches, turquoise coves, and medieval villages, about an hour and a half from Barcelona. A stopover combining set jetting with one of the most beautiful stretches of the Catalan coastline.

Our take

“The Final Problem” confirms a trend from which the hotel industry directly benefits: locked-room hotel series turn their settings into destinations. After the Gran Meliá in “Oasis”, it is now the Costa Brava’s turn to enjoy a global spotlight just weeks before the release. The set is not a real hotel, but the effect will be the same: in the days following September 25, thousands of curious viewers will search for “where was the series filmed”. The answer comes down to three words: Lloret de Mar.