无心混迹官场的“九品芝麻官”包龙星意外地卷入了一场惊天惨案，原本清晰的案情一夜之间被有心之人颠倒了黑白，坚信“邪不压正”的包龙星与强于自己数倍的力量展开了信念的较量，最终证明了自己的同时也捍卫了正义。

該片講述了清朝年間正直廉潔的“九品芝麻官”包龍星（彭禺厶 飾）為了推翻冤案進京告御狀，經歷過被逼絕境，卻始終懷揣著觸底反彈的決心與決不放棄的信念，最終成功為龐曉柔（林妍柔 飾）討回公道，將賊人一網打盡，並且收穫了友誼與真愛的故事。

Bao Longxing, a "nine-level sesame official" who unintentionally wandered into the officialdom, was accidentally involved in a shocking tragedy. The originally clear case was turned upside down overnight by someone who was interested. Bao Longxing, who firmly believed that "evil does not prevail over good", and Qiang and himself Several times the strength started a battle of beliefs, and finally proved himself and defended justice.