Man Overboard

 Ruth Ware's bestselling psychological thriller, The Woman in Cabin 10, has been adapted by Netflix into a sleek, contained, and often pulse-pounding mystery movie. Starring the always-compelling Keira Knightley as journalist Laura "Lo" Blacklock, this film swaps the novel's cruise ship for a lavish, exclusive yacht trip in the Norwegian fjords, and the confined setting works wonders to ratchet up the tension.

All Aboard the Gaslight Express

Lo Blacklock is an investigative journalist struggling with the aftermath of a traumatic event. She boards the maiden voyage of a luxury yacht owned by billionaire Richard Bullmer for a high-profile assignment. Her first night aboard, while fighting insomnia and a generous amount of alcohol, she witnesses a body—a woman—being thrown overboard from the cabin next to hers.

The problem? Everyone on the yacht is accounted for. There is no passenger in Cabin 10. Lo's insistence that she saw what she saw is instantly dismissed, leading to a classic "unreliable narrator" and "gaslighting" scenario. The central mystery becomes: did Lo truly witness a murder, or is her trauma and anxiety playing tricks on her?

Visually, the film is stunning. The yacht, with its glass walls and minimalist luxury, feels both glamorous and coldly isolating—a perfect backdrop for a thriller where everyone has something to hide. 

Keira Knightley is the anchor, delivering a performance that elevates the material. Her Lo is more put-together and less drunkenly unreliable than the book's protagonist, which, surprisingly, makes the gaslighting she endures even more infuriating to watch. You'll be rooting for her as she navigates the labyrinthine decks and the equally twisted motives of the yacht's elite guests .

The Good and The Bad

The movie excels in its initial setup. The Hitchcockian tension—the fear that no one believes you and your sanity is fraying—is palpable. The isolation of being surrounded by the wealthy and powerful, all of whom seem complicit in silencing her, is the film's strongest thematic current.

However, once the plot shifts from "Did it happen?" to "Who did it?", some of the complexity and nuance from the source material are sacrificed for speed. The film takes a few liberties with the book's ending and character relationships, which may disappoint die-hard fans of the novel. The final act, while delivering a satisfying amount of action, rushes through certain reveals, making the 'who' and 'why' feel slightly less impactful than they could have been.

The Verdict

The Woman in Cabin 10 is a perfect piece of "airport novel" cinema: it's smart, stylish, and immensely watchable. While it might not redefine the psychological thriller genre, it's a classy, atmospheric, and suspenseful Netflix offering that’s perfect for a weekend watch. 

Watch if you like: Gone Girl, The Girl on the Train, and claustrophobic mysteries set among the ultra-rich.