影片讲述律师端木兰与检控官无证为案件在庭审相遇找寻真相时，展开针锋相对的法庭辩论

万文芳是一名著名歌星，在封闭的化妆间遇到刺杀，在场的只有吉米·托马斯，律师端木兰接受委托称为吉米的辩护律师为几米做五证辩护，在法庭上与该案检察官无证展开，激烈争辩，真相层层被揭露。知情人爆料，吉米托马斯是万文芳18年前遗弃的私生子，将这起案件性质变成弑母案。真相扑朔迷离，随着本案的不断进行之中，关键证人万文芳经纪人田景程进入案情有了大的转变。

吉米托马斯在此之前已经了解自己是万文芳的私生子，但渴望母爱的托马斯只能通过工作的方式接触自己的母亲，这次自己母亲被暗杀，自己也成为了案件最大的嫌疑人，一系列的故事也由此展开。

The film tells the story of the tit-for-tat court debate between lawyer Duan Mulan and the prosecutor without a certificate to find the truth for the case in court

Wan Wenfang, a famous singer, was assassinated in a closed dressing room. Only Jimmy Thomas was present, and the lawyer side Mulan accepted the commission of a defense lawyer called Jimmy to defend Jimmy with five evidences, and started a heated debate with the prosecutor of the case in court without a certificate, and the truth was revealed layer by layer. Insiders broke the news that Jimmy Thomas was the illegitimate son Wan Wenfang abandoned 18 years ago, turning the nature of this case into a matricide case. The truth is complicated and confusing. With the continuous progress of the case, the key witness Wan Wenfang's agent Tian Jingcheng entered the case and the case has undergone major changes.

Jimmy Thomas knew that he was Wan Wenfang's illegitimate son before this, but Thomas, who longed for maternal love, could only get in touch with him through work. My mother, this time my mother was assassinated, and I became the biggest suspect in the case, and a series of stories unfolded from this.