On Christmas night, Miki returns home alone from work, sighing as she faces another year of loneliness. Suddenly, she's visited by Nona, dressed as Santa Claus. Though initially suspicious, Miki gradually lets her guard down, charmed by the festive appearance. However, this Santa is actually using a pistol robbery tactic—she quickly ties Miki up and ransacks the entire house. What fate awaits Miki as she endures this isolation?