Dr. Mayu Akikawa works as a mental health counselor at a bustling Tokyo general hospital, a demanding career that often leaves her exhausted yet deeply fulfilled. Her life takes a jarring turn when her younger brother, Kazuma, an aspiring and eccentric digital creator, vanishes into the underbelly of the city's urban legends. Driven by an intense sibling protective instinct and deep-seated worry, Mayu resolves to track him down, launching an investigation that plunges her headfirst into a nightmare she never anticipated. Kazuma, desperate for internet clout and viral fame, had recently broken into a burned-out
apartment complex—the infamous site of a horrific past tragedy—to film supernatural content for his fledgling channel. In his obsessive pursuit of views, he inadvertently resurrected a cursed digital artifact, unleashing a
malevolent spirit tied to the notorious entity Sadako. As Mayu retraces her brother’s frantic steps, she discovers the haunting video file he uploaded just moments before his disappearance. Viewing the footage binds her to the ancient curse, initiating a terrifying countdown that manifests as chilling psychological hauntings and visceral physical dread in her waking life. Paranoia sets in as Mayu realizes the curse is no longer confined to static screens; it bleeds into her reality, threatening her sanity and the lives of everyone she encounters. Her only ally is Minoru Yabuki, a compassionate colleague who refuses to abandon her, despite the inexplicable horrors unfolding around them. Together, they consult an eccentric occult expert who reveals that Sadako’s wrath has evolved, harnessing modern internet connectivity and digital streaming to spread her eternal malice exponentially faster than the analog videotapes of the past. The clock ticks relentlessly as Mayu experiences increasingly terrifying visions and encounters the vengeful ghost, whose spectral form materializes from glowing monitors and shadowy corners. Driven by the desperate need to save Kazuma—who is trapped in a comatose state between life and death within the spirit realm—Mayu confronts her deepest fears. In a harrowing, climactic confrontation at the abandoned apartment ruins where it all began, Mayu must face the iconic, water-logged wraith directly. She realizes that breaking the cycle requires a supreme sacrifice of courage and emotion. By offering empathy to the tortured spirit instead of pure terror, Mayu manages to temporarily placate the entity, narrowly freeing her brother’s physical body from the brink of death. However, as the film concludes, a lingering sense of dread remains, reminding them that digital connectivity ensures Sadako can never truly be deleted from the modern world.