Bruno, a skilled musician, is hired to compose the soundtrack for an upcoming horror film. He moves into the villa where the story unfolds, hoping the eerie atmosphere will spark his creativity. The director, Sandra, is obsessed with capturing the fear of the dark and keeps the film’s ending hidden from the crew. The property owner, Tony Rendina, who is preparing to depart for his father's rig in Kuwait, is pleased that the composer agrees to use part of the house as a makeshift studio and to record some of the music on a cassette.
Inside the building, Giovanni, the groundskeeper, lurks in the basement, while Bruno’s girlfriend, Giulia, an actress, is away in another city for a stage gig. Bruno learns that before Tony owned the property, a woman named Linda leased the villa, but she vanished after moving out, leaving a hush of rumors that skews the mood of the place.
An unseen figure steals an extendable box cutter from Bruno’s studio, foreshadowing danger to come. Bruno soon meets Katia, a neighbor who enters unannounced and flirts with him before slipping away. Katia leaves behind a diary that hints at Linda’s “secret.” Outside, the killer drags Katia’s body through the yard, while Bruno is left oblivious after a cigarette break, only to find blood on his pants and receive a silent, ominous phone call.
Back inside, Bruno revisits his music tapes and hears a whispered warning from a woman about Linda’s secret: “no one must know.” The tapes are later destroyed, and Katia’s diary pages are burned in the fireplace, as if someone is trying to erase the past. Giulia makes a surprising visit to Bruno, stopping by between rehearsals, while he voices suspicions about Katia’s murder. Giulia, however, doubts him and worries that he might be cheating. When Bruno calls the theater company, the director reveals that Giulia was fired from the play, adding another layer of strain to their fragile bond.
Katia’s roommate Angela arrives, explaining that Linda sometimes let them use her pool. Angela is evasive when asked about Linda, but Bruno presses on. In the pool, Angela discovers the box cutter sunk to the floor, a sign that someone has been tampering with the villa. Linda, wearing a skirt and red nail polish and armed with a knife, returns to the bathroom where she hides her face behind a plastic cover and attacks Angela, slashing her throat in the tub after stabbing her hand into the vanity—an eerie, brutal scene that marks Linda’s dangerous presence in the house.
Bruno’s sense of danger grows when a kitchen knife is found out of place and a hole appears in the vanity. He and Sandra search Linda’s stored belongings in the basement, uncovered among odd items is a suitcase full of tennis balls, and Sandra explains that Linda is the film’s primary inspiration. Linda then returns to the villa and retaliates by shredding the final scene in the studio with scissors, a chilling act of destruction aimed at erasing the truth.
Giovanni later discovers Katia and Angela dead inside a tank, and Linda bludgeons him to death with his own wrench. Sandra arrives, seeking reconciliation, but Linda ambushes her, dragging her by the film reels and garroting her in a brutal demise while laughing maniacally. Giulia arrives to find Sandra’s body and is trapped in the house as Linda manipulates the space: closing the garage door, messing with the lights, and showering the floor with tennis balls to heighten the claustrophobic fear. Giulia hides in a cabinet when she sees Linda, who wedges a knife in the door, threatening her escape.
When Bruno finally arrives, Giulia seizes the chance to run, but Linda pierces her through the heart with the kitchen knife. Bruno confronts the killer and knocks Linda out with a brick, only to discover that the supposed killer has vanished, leaving behind only a wig in place of a body. The terrifying truth finally comes to light: the murderer is the owner himself, a man who used Linda as a clandestine alter-ego to enact violence in a bid to prove his own masculinity. As the confrontation unfolds, Bruno realizes that Tony’s secret misery—an inner childlike fragility—fed a murderous impulse toward the women in Linda’s orbit, a dark cycle of rage and identity.
In a final, uneasy twist, the truth about Tony’s dangerous duality is laid bare: a man who could not reconcile his own insecurities with the image of manhood used a hidden persona to commit acts of violence, leaving Bruno to grapple with the realization that the darkness haunting the villa was not only in the film being made, but in the people sharing that space with him.
> I'm not a female child
