At three o'clock in the middle of the night, 13-year-old daughter Niannian suddenly grabbed her mother tightly, ordering her not to turn on the lights or make a sound, and to take her documents to flee the apartment in an emergency. The entire building suffered a eerie power outage, dead silent, and the sound of searching footsteps came step by step from the dark stairwell. The daughter calmly planned and deliberately created illusions to confuse the people lurking inside the building, taking her mother to escape downwards at her peril. The enclosed building was fraught with crisis, and the girl seemed to foresee danger. The mother and daughter were trapped in a dangerous situation, and a thrilling escape begins from here.