A group of students accuse a teacher of severe corporal punishment that sent Qin Ai- Lin (Li Shao-Chieh) to the hospital. Unsatisfied with the school's handling of the matter, the students, led by Ai-Lin's friend and admirer Li Lun-Hua (Lu Ming-Yao), escalate their protests while the accused teacher denies wrongdoing. As the scandal grows, Lun-Hua notices that the events surrounding them are eerily similar to the play he is reading. Interspersing play scenarios with the film's narrative, Conspiracy depicts with verve how lies and obsession spiral out of control into persecution and violence.