Romina, an overworked nurse and single mother, returns home from her late shift on Halloween night to find Chris, a forlorn maniac, hiding out with Alan, a bruised and beaten hostage within her home. Her home becomes the stage for Chris to enact brutal justice up Alan whom he blames for an alleged act of horrendous inexcusable violence against a close family member. Romina finds herself plunged into a personal hell as she struggles to side with either party. The worst is yet to come. An unexpected wave of violent intruders descend upon the neighbourhood and lay siege to her home.