On his way to high school, Huang witnesses the death of Chia, a teenager in their high school, along with Lin and Yeh, other 2 students from their high school, whom Huang has never known before. Her dead body lies in front of them, and this shocking image ties their fates together, and this twisted fate is going to change their high school lives forever because they are now partners in crime. Because of all different reasons, Huang, Yeh, and Lin start their own investigations in order to find out the truth for Chia's death.