Young mother Jessica Nash is grappling with the task of clearing out her late grandmother's house, which she has inherited, in preparation for its sale and her move. During this process, she finds herself unintentionally trapped in a closet. Desperate for help, she calls out to her young daughter, Lainey, but unfortunately, Lainey is unable to retrieve the key for her. Just then, Jessica's ex-boyfriend Rob arrives with his buddy Sammy. While Rob successfully frees her from her confinement, Jessica's anger flares up upon realizing that she’s now in the presence of Sammy, a convicted pedophile.
As tension escalates, Sammy cleverly manipulates Rob into placing Jessica back into the closet as they prepare to leave. However, things take a darker turn when Sammy later breaks into the house. Displaying quick thinking, Jessica tricks Sammy into reaching under the closet door and then uses a screwdriver—which Lainey had brought her—to nail his hand to the floor, effectively trapping him there. Though she instructs Lainey to stay upstairs with her infant brother Mason, Lainey descends into danger.
In a horrifying confrontation, Sammy seizes Lainey and threatens her safety unless Jessica releases him. In a desperate move, Jessica sets Sammy’s hand ablaze, causing him to relinquish his grip on Lainey. Though she extinguishes the fire to avoid suffocating from the smoke, the damage is done; Sammy's hand is left severely burned and mutilated, leading to the grim suggestion that he may be dead.
Jessica seizes this opportunity to escape by crawling through the ceiling to the upper level. She retrieves Lainey and Mason, but as the rain pours down heavily, she allows her children to return indoors while she attempts to get the door open. To her horror, Sammy is still alive, and he lunges at the kids, holding Mason at knifepoint. Just as matters threaten to escalate, Rob appears, armed and ready, shooting Sammy in the head.
In the aftermath, Rob and Jessica try to mend their fractured relationship; however, Jessica realizes that Rob will perpetually prioritize his drug habits over them. In a chilling turn of events, she slips him three grams of crystal meth. As Rob overdoses, he futilely attempts to coerce Jessica into using drugs as well. In a final act of self-defense, she pushes him out of a window, leading to his demise.
Fast forward to some time later, Jessica is shown in the now-renovated house, along with her children. They are seen making and selling apple butter, inspired by her mother’s recipe, and they appear to be finding happiness once again.
