In 1984, a major fire broke out on the fourth floor of the Jin Xin Building, the residents on the 4th floor were trapped in the fire as the fire exits were blocked, which claimed a total of 19 lives. Pei who possesses psychic abilities, moves into the building, teaming up with Shao, a horror novelist seeking inspiration within the building, they investigate numerous unexplained terrifying events and aim to uncover the truth behind the tragic fire..

A series of tragic events unfolds after Chang Chi-Mao's daughter goes missing as an infant. Chang becomes consumed by revenge against a powerful criminal organization suspected of kidnapping her. Along the way, he clings to the hope that his daughter may still be alive, determined to rescue her and break free from their dark fate.