On the outskirts of a city, a middle-aged woman lives with her son. Her son is an excellent student, and getting into the city's top university is her greatest source of pride. She imagines enjoying a wonderful retirement after he graduates, traveling all over the place. After taking him to school, she realizes that in eighteen years, her son has never been away from her. Within just a few days, she already misses him. But she never imagined that the day she took him to school would be the last time she saw him. Her son has mysteriously disappeared...
Theme: As she keeps searching for her son, she uncovers the truth.
