Netflix has released the trailer and key art for She Walks in Darkness, a Spanish historical thriller that dramatizes the largest undercover operation against ETA.
The film premieres worldwide on October 17, 2025.
Set across the 1990s and 2000s, the story follows Amaia (Susana Abaitua), a young Civil Guard officer who spends over a decade infiltrating the terrorist group. Her mission: to uncover the secret hideouts ETA maintained in the south of France. The film grounds its suspense in real events while also exploring the emotional toll of undercover work.
Watch the Trailer
The Historical Context
She Walks in Darkness situates its story within a charged political and social moment in Spain. By the 1990s, ETA had carried out decades of violence, and Spanish authorities intensified their strategies to dismantle the group. The film’s central operation marked a turning point, changing how the Civil Guard approached counterterrorism.
Rather than fictionalizing for spectacle, the project leans on the stark reality of prolonged undercover work. For over ten years, Amaia lives a double life, torn between her duty and the psychological cost of isolation and secrecy.
Cast and Performances
Leading the film is Susana Abaitua, known for her layered performances in both drama and thriller roles. Her portrayal of Amaia promises to capture the vulnerability and resilience of a woman forced to hide her identity for years. She is joined by Andrés Gertrúdix, Iraia Elias, Raúl Arévalo, and Ariadna Gil, rounding out a cast that reflects the gravity of the story.
The creative team also signals ambition. Director and writer Agustín Díaz Yanes brings a sharp eye for character-driven narratives, while producers Belén Atienza, Sandra Hermida, and J.A. Bayona add weight from their track record of large-scale Spanish productions with international reach.
Why This Netflix Release Stands Out
Netflix has steadily expanded its European slate, and Spanish productions remain central to that strategy. She Walks in Darkness arrives in a climate where audiences are seeking historical thrillers with both immediacy and nuance. By focusing on an undercover operation that reshaped modern Spanish history, the film promises more than suspense; it offers reflection on the cost of extremism and the human burden of fighting it.
She Walks in Darkness on Netflix
With its October 17 premiere, She Walks in Darkness adds a compelling chapter to Netflix’s lineup of Spanish originals. The film’s mix of historical gravity, psychological tension, and strong performances positions it as one of the more ambitious international releases of the year.
For viewers interested in political thrillers grounded in real history, this Netflix film offers not just a suspenseful narrative but also an examination of the personal cost behind undercover work.
Key Details
- Release Date: October 17, 2025
- Title: She Walks in Darkness
- Country of Origin: Spain
- Director & Writer: Agustín Díaz Yanes
- Producers: Belén Atienza, Sandra Hermida, J.A. Bayona
- Cast: Susana Abaitua, Andrés Gertrúdix, Iraia Elias, Raúl Arévalo, Ariadna Gil
- Format: Netflix original feature film
- Source Material: Inspired by the real undercover operation that shifted Spain’s fight against ETA
The Poster
