Chen Yuan, a famous teacher at Mingde Middle School, was involved in a sexual harassment scandal. He couldn't bear the public opinion and jumped off a building to prove himself. His suicide note turned out to be "ironclad evidence." The top student Shen Xingchen aroused national support as a victim, and the century-old prestigious school was hastily divided. Female lawyer Lin Wei intervened in this "iron case" and uncovered doubts about the candid camera equipment and the two-way trace of drugs. In the pursuit of old cases by forces and the silence of witnesses, she gradually exposed the "Cicada Plan". When Lin Wei's identity as "poor student Lin Jing" was revealed in court, Chen Yuan's past payment of tuition fees ignited the ultimate confrontation. The bloody truth builds a glimmer of light for the three-foot podium to withstand the cold blade of human nature.
