Thunderous Night of Terror

On a stormy night, college student Wu Jiajia boards the eerie No. 22 final bus. Driver Zhao Kun warns her that classmate Lu Zhou is a ghost. That night, knocking spirits appear constantly, and best friend Zhu Ya has no shadow. The next day, the bus company claims Zhao Kun has been dead for three days. Lu Zhou appears, revealing Zhu Ya is actually a ghost who died in a car accident a week ago, and accuses Wu Jiajia of being cursed with a 'substitute spell.' Since then, Zhao Kun and Lu Zhou argue fiercely, each accusing the other of being a ghost. Who is human and who is a ghost? Or perhaps, neither of them is.