Lo Blacklock is a travel journalist with a restless spirit and an eye always out for the next big story. Assigned to cover the maiden voyage of an ultra-luxurious yacht, what starts as a glamorous dream quickly unravels into a chilling nightmare. One late night, amid cocktail parties and serene ocean views, she witnesses a woman being thrown overboard. But when she tries to report it, she is told the passenger list is intact—Lo’s voice falls on deaf ears, and whispers of hallucination begin.
Haunted by what she saw, Lo transforms from confident reporter to paranoid crusader. With no one to trust—not the crew, not the guests—she begins digging. Her investigations unearth strange behaviors, cryptic conversations, and subtle lies. A hush blankets the deck, and every glance is weighed with suspicion. As Lo confronts the possibility that she’s ensnared in a conspiracy, what was once an assignment becomes a personal battle for truth and survival.
The yacht’s opulence quickly becomes oppressive. Beautiful corridors and sunlit salons morph into labyrinths of dread. With each passing hour, Lo’s isolation deepens—her credibility slipping as those around her dismiss her concerns or outright gaslight her. Alone and desperate, she must piece together clues while navigating high-stakes tension. The closer she gets to exposing the truth, the more dangerous the voyage becomes.
Lo’s only allies may be her own instincts and those rare souls aboard who dare to question the official narrative. With suspicion shadowing every interaction, she teeters between reason and paranoia. Yet her resolve only hardens: she refuses to be erased. As the yacht cuts through cold, unrelenting waters, her journey becomes a race against time—and against those who would silence her forever.
The Woman in Cabin 10 grips and grips tight—you’re never sure what’s beneath the surface: truth, illusion, or something far more sinister. With suspense that builds on every wave and distrust that anchors every scene, the film delivers a psychological thriller that refuses to go down quietly.