Lou lives a solitary life with her dog, Jax, amidst preparations that hint at a troubling past. She's seen burning official-looking papers, sharpening her knife, and cleaning her guns, alluding to a tense anticipation of something grim. The film opens with Lou making an unsuccessful deer shot, displaying her inner turmoil and physical struggles from arthritis.
As a fierce storm approaches, the townspeople are busy fortifying their homes. Meanwhile, a mother named Hannah (Jurnee Smollett) is enjoying a game of hide-and-seek with her young daughter Vee (Ridley Asha Bateman). Lou, the hard-nosed landlady, drops by to collect rent, refusing Hannah's plea for an extension — a move that sparks tension as Hannah feels frustrated by Lou's curt demeanor.
In addition, Chris (Greyston Holt), Hannah's friend, attempts to help by bringing supplies, but ends up being a victim of a sinister hitchhiker. This man, a hidden threat, plunges Hannah into chaos as he kidnaps Vee after cutting the power to their home, while Hannah discovers Chris dead in his van.
Desperate for answers, Hannah rushes to Lou, interrupting her suicide attempt; a revelation that hints at Lou's deep connection with Hannah and her daughter. Here, the story takes a dark twist as it becomes evident that Hannah suspects Philip (Logan Marshall-Green), Vee's father, to be behind the abduction.
As the storm rages, Lou's truck is blown up by the hitchhiker, propelling both women into a perilous night trek to rescue Vee. With no means of escape by air or sea due to the storm, the duo tracks down Philip, whose identity holds heavy implications — he is not just a criminal but Lou's estranged son, driven to despair by their fraught history.
Unwinding secrets surface; Lou, a former CIA agent, must confront her past and protect Hannah and Vee. In an explosive confrontation at Eagle Bay, tension builds as they grapple with family ties, betrayal, and redemption. Ultimately, the past proves as treacherous as the storm surrounding them, leading to a dramatic showdown that leaves both Lou and Philip entangled in a web of choices that will resonate long after their final clash.
In the aftermath, Hannah and Vee find themselves ready to depart from Lou's home, their futures uncertain yet intertwined. A chilling final scene leaves viewers contemplating the remnants of Lou's past as she watches from afar, an enigmatic figure with her own scars, still poised in their shadowy narrative.
