The Final Problem (2026 TV Series) - Season 1 (Episode 4 Added)

Season 1 (4 episodes, premiered Sep 25, 2026 on Netflix) unfolds as a locked‑room whodunit with a meta twist: Basil’s fame as “Holmes” makes people expect answers, but the case proves messier than any script. He teams with Foxá (Martiño Rivas), an aspiring thriller writer, to canvass the hotel, interrog suspects, and sift through clues while tensions rise among the trapped group. Key figures include Adela Figueroa (María Valverde), a mysterious young traveler; Mrs. Ausländer (Maribel Verdú), the hotel’s steely manager; Fonseca (Gonzalo de Castro), an ambitious film director; and a rotating roster of guests and employees (Cristina Kovani, José Condessa, Pepón Nieto, Daniel Holguín, Michael Stobbe, Yaiza Guimaré) whose secrets keep multiplying as the storm rages.