The script is based on fresh graduate Linlin's terrifying encounter in an old apartment, and contains profound positive ideological connotations. It exposes Chen Mo's despicable behavior of using his power to deceive and violate women living alone, criticizes Lao Zhou's mental distortion due to the death of his daughter, and his behavior of snooping and intervening in other people's lives with paranoia, showing the danger and malice hidden in daily relationships, emphasizing that "evil deeds will eventually be punished", and the perpetrators will eventually be unable to escape legal sanctions and backlash. Linlin went from being ignorant and timid when she first entered society, to being frightened and helpless in the face of strange incidents in her apartment, to gradually becoming more calm, observing, and facing danger head-on.