Netflix’s psychological thriller, The Woman in Cabin 10, left viewers on the edge of their seats as journalist Lo Blacklock battled gaslighting and a deadly conspiracy to expose a shocking body double twist, a ruthless inheritance scheme, and the true identity of the woman she saw thrown overboard from a luxury yacht.
The high-stakes world of luxury cruises takes a terrifying turn in Simon Stone’s The Woman in Cabin 10, a gripping Netflix thriller based on Ruth Ware’s bestselling novel. Starring Keira Knightley as the intrepid journalist Laura “Lo” Blacklock, the film plunges audiences into a labyrinth of paranoia, deceit, and murder. What begins as an assignment to cover a lavish charity cruise quickly spirals into a frantic search for truth when Lo witnesses a woman being thrown overboard—an event everyone else on the superyacht insists never happened.
Fans of classic thrillers will appreciate the psychological tension as Lo, already struggling with past trauma from a previous investigation, finds herself isolated and dismissed. The brilliance of The Woman in Cabin 10 lies in its ability to keep viewers guessing, mirroring Lo’s own desperate attempts to separate reality from the carefully constructed lies surrounding her.
The Initial Mystery: Was There Even a Woman in Cabin 10?
Upon boarding the luxurious yacht owned by Richard Bullmer (Guy Pearce) and his ailing wife, Anne Bullmer (Lisa Loven Kongsli), Lo is tasked with covering Anne’s charitable foundation ahead of a fundraising gala in Norway. On the first night, Lo encounters a mysterious woman in cabin 10. Later, she is awakened by a struggle and watches in horror as a body is hurled into the frigid sea. Her frantic reports are met with skepticism and disbelief; every passenger is supposedly accounted for, and the crew claims cabin 10 was empty, its assigned guest having cancelled. This deliberate gaslighting leads Lo down a dangerous path, convinced that her sanity—and her life—are at stake.
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Keira Knightley as Lo and Gugu Mbatha-Raw as Rowan in ‘The Woman in Cabin 10’
The Shocking Body Double Twist Revealed
Lo’s relentless investigation eventually uncovers the harrowing truth: the woman she saw thrown overboard was indeed real, and it was the yacht’s actual owner, Anne Bullmer. The woman Lo and everyone else believed to be Anne was, in fact, an imposter named Carrie (Gitte Witt). Richard Bullmer, driven by greed, had murdered his terminally ill wife to prevent her from donating her vast fortune to charity, a plan she had confided to Lo. He then hired Carrie, who bore a striking resemblance to Anne (identified through facial recognition technology), to impersonate his wife and sign over Anne’s wealth to him. This sinister scheme underpins the entire narrative, validating Lo’s sanity and exposing Richard’s murderous intent.
Netflix
Lisa Loven Kongsli as Anne Bullmer in ‘The Woman in the Cabin 10’
Richard’s Fatal Inheritance Scheme and His Accomplices
Richard Bullmer’s initial plan involved his wife’s physician, Dr. Robert Mehta (Art Malik), giving Anne a lethal injection under the guise of medical treatment. However, Anne discovered Richard with Carrie, dressed in her clothes, leading to a furious confrontation. Richard impulsively shoved Anne, causing her to hit her head and die. In a panic, he dumped her body overboard. The subsequent cover-up involved several key players:
- Carrie: Hired as a body double, she desperately needed money for her daughter. She initially went along with the plan but turned on Richard after realizing he intended to kill her as well once her usefulness expired.
- Dr. Robert Mehta: Anne’s trusted doctor, who was beholden to Richard. He agreed to the original overdose plan and later actively participated in trying to silence Lo.
- Captain Addis (John Macmillan): The yacht’s captain, who willingly collaborated with Richard and Dr. Mehta in their attempts to capture and eliminate Lo.
- Lars (Christopher Rygh): A tech specialist who assisted Richard in using AI for facial recognition to find Carrie, though his full awareness of the nefarious plot is ambiguous.
The majority of the wealthy passengers remained oblivious, either willfully or negligently, to the escalating danger and the murderous conspiracy unfolding around them, adding another layer of unsettling realism to the narrative.
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John Macmillan as Captain Addis and Keira Knightley as Lo in ‘The Woman in Cabin 10’
Ben Morgan’s Tragic Heroism and Lo’s Daring Escape
As Lo closes in on the truth, Richard and his accomplices intensify their efforts to silence her. Trapped in the yacht’s underbelly, Lo’s former love interest, the photographer Ben Morgan (David Ajala), intervenes. Suspecting something was amiss when Lo was supposedly “resting,” Ben returns to the yacht and discovers her being attacked by Dr. Mehta and the Captain. In a heroic act of sacrifice, Ben saves Lo from a poisoned syringe meant for her, taking the fatal injection himself. His death serves as a poignant reminder of the high cost of truth in this perilous journey, a detail that resonated deeply with viewers, as reported by Entertainment Weekly.
Following Ben’s tragic demise, Lo makes a desperate escape by jumping into the freezing sea and swimming to shore, symbolizing her final break from the gaslit world of the cruise. This harrowing ordeal prepares her for the ultimate confrontation.
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David Ajala as Ben in ‘The Woman in Cabin 10’
The Gala Showdown and Richard Bullmer’s Downfall
The film culminates in a dramatic climax at the destination gala, where Richard intends to finalize his inheritance scheme with Carrie impersonating Anne. Lo, surprisingly alive, crashes the event. Stepping onto the stage, she delivers Anne’s original speech, which explicitly details Anne’s plan to donate her entire fortune to charity, thereby exposing Richard’s financial motive to the horrified, moneyed crowd. Carrie, no longer willing to be Richard’s pawn, courageously confirms Lo’s account, admitting her true identity as an imposter.
Cornered, Richard attempts to flee, taking Carrie hostage at knifepoint. However, Sigrid (Amanda Collin), Anne’s head of security who was closer to Anne, shoots Richard in the shoulder. Lo then delivers the final blow, striking him with a tool, causing him to fall to his death. This public unraveling of Richard’s meticulously planned crime ensures justice for Anne and highlights the power of truth.
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Guy Pearce as Richard Bullmer in ‘The Woman in Cabin 10’
The Aftermath: Justice, New Beginnings, and Lingering Questions
In the aftermath, justice begins to unfold. Anne’s charitable intentions are honored, with her vast fortune going to the cancer foundation as she wished. Lo Blacklock successfully resumes her journalistic career, writing a powerful piece that not only recounts the events on the yacht but also pays tribute to Anne’s generosity and Ben Morgan’s sacrifice. Dr. Mehta and Captain Addis are arrested and face trial for the double murder of Anne and Ben, a detail confirmed by Entertainment Weekly. The remaining wealthy passengers are left to grapple with the catastrophic fallout of their privileged ignorance.
Carrie is safely reunited with her daughter, her life irrevocably changed but free from Richard’s threat. She maintains a long-distance friendship with Lo, sending her a video message inviting her to visit, hinting at a new chapter for the woman who became an unlikely key to unraveling the truth. For those who wish to revisit the suspense, The Woman in Cabin 10 is now streaming on Netflix.
