Minwei and his friend Aaron are engaged in part-time work in the pesticide spraying business, but Minwei's health is deteriorating due to long-term exposure to pesticides. Aaron advises Minwei to find another job, which leads to an argument between them.

Amid the hubbub of the New Year’s Eve firework display, three youngsters of different backgrounds become roommates in the juvenile detention house. However, they soon come to realize that they could never leave the place for good.