
Keira Knightley leads The Woman in Cabin 10, the new Netflix film based on Ruth Ware’s bestselling novel, premiering Friday, October 10. Directed by Simon Stone, the adaptation unfolds aboard a luxury yacht, where glamour and exclusivity mask an unsettling mystery. Knightley plays a journalist who insists she witnessed a passenger thrown overboard, only to be told that no such event occurred since every guest and crew member remains accounted for.
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Her alarm isolates her as disbelief surrounds her claim. Convinced of what she saw, she presses forward, risking her safety in a search for the truth. The contained setting of the yacht amplifies the tension, trapping her in an environment where silence and suspicion tighten with every unanswered question.
The screenplay by Joe Shrapnel, Anna Waterhouse, and Simon Stone channels the claustrophobic unease of Ware’s novel into cinema. The yacht becomes both sanctuary and prison, an elegant stage for paranoia where every glance and conversation carries a sense of menace. Producers Debra Hayward and Ilda Diffley shape the production around atmosphere and character, ensuring the isolation at sea resonates through the film’s suspense.
Knightley anchors the cast with a performance centered on persistence and doubt. She is joined by Guy Pearce, Gugu Mbatha-Raw, Kaya Scodelario, David Morrissey, David Ajala, Art Malik, Hannah Waddingham, Pippa Bennett-Warner, Amanda Collin, and others who deepen the shifting dynamics of trust and deception. Each performance contributes to the uncertainty that defines the story.

The adaptation balances the expectations of Ware’s readers with the demands of new audiences drawn to psychological thrillers. By tightening the focus on atmosphere and character, Stone crafts a narrative where every moment questions perception and truth.
Arriving in October, The Woman in Cabin 10 positions itself as a thriller that asks audiences to confront fear, disbelief, and resilience. Knightley’s portrayal of a woman determined to stand by her vision drives the suspense, guiding viewers into a story where nothing feels certain.