Nestled deep in the picturesque countryside, a sprawling, isolated mansion serves as the setting for a fateful weekend getaway. A tight-knit group of old college friends, seeking a much-needed escape from their demanding urban lives, gathers for a luxurious retreat. Among them is Sarah, whose underlying anxieties about the future of her turbulent marriage to Mark cast a subtle shadow over the festivities. Alongside them are Jessica and David, a seemingly carefree couple whose own hidden resentments are slowly beginning to surface under the pressure of forced isolation.As the sun sets and the wine flows, the initial warmth of reunion gives way to a palpable tension. Secrets are weaponized, old romantic jealousies are reignited, and the psychological boundaries between the friends begin to fracture. However, the emotional turmoil inside the house abruptly pales in comparison to a terrifying external threat. Unbeknownst to the group, a horrific
biological weapon has accidentally leaked at a nearby, top-secret government facility, transforming local inhabitants into feral, hyper-violent predators driven by base desires and unbridled aggression.When the first infected individual breaches the estate's perimeter, the idyllic weekend transforms into a visceral, blood-soaked night of survival. The
psychological horror of their interpersonal conflicts instantly morphs into physical terror. Mark is forced to confront his cowardice as the attackers infiltrate the living quarters, while Sarah taps into a fierce, primal survival instinct that shocks even her husband. As the infected breach the doors, the mansion becomes a labyrinth of fear and desperation. Friend turns against friend in the chaotic scramble for safety, and the fragile bonds holding the group together completely shatter.In a series of brutal, claustrophobic encounters, the friends are picked off one by one, their deepest vulnerabilities exposed in their final moments. David falls victim to an ambush in the sprawling hallways, while Jessica’s desperate bid for escape ends in tragedy. Ultimately, only Sarah and a severely wounded Mark manage to barricade themselves in the reinforced basement as the horde swarms above them. Dawn breaks, illuminating the carnage of the estate. Though they have survived the night, the psychological trauma of the ordeal—and the horrifying realization of what they had to do to endure it—ensures that they will never truly return home. They emerge into the morning light forever changed, haunted by both the monsters outside and the dark truths uncovered within.