Nian is trying to get into shape for the state Gaokao exam. Her chances of getting a spot at university depend on her score and the constant bullying of her classmates is not helping much. Bei’s world is the street, with all its dark corners. A night-time encounter brings the shy schoolgirl together with the street-savvy trickster, Bei. When Nian’s school nemesis turns up dead, the new allies come under suspicion.