Three students from Jing Mu Girls’ Middle School go missing and turn up dead. Xiao Tong, a special education student with speech impairment, feels like someone is watching her. During the rehearsal for the school’s foundation day event, a corpse falls from the ceiling of the auditorium, and Xiao Tong disappears in the midst of confusion. Her mother, Li Han, who has been working at the school to be close to Xiao Tong, begins her pursuit.
Li and his wife A Yu run a small business in Thailand and enjoy a happy home life with their two daughters. When their eldest daughter is violently assaulted, blackmailed and left traumatised by another student, her parents intervene, leading to a dead body which needs to be hidden, and every trace of the boy buried to cover up the accident.
