律師張正煦接到委託，發現嫌犯湯師承竟是自己剛出道執業時接觸過的客戶，當時受雇於其他事務所的他，接受老闆指示替嫌犯辯護，卻因此嚴重傷害到被害者；如今他為了彌補，決心不計代價追求屬於自己的正義。

狼師性侵案，補習名師誘騙女生，以愛的童話故事為餌，將補習社當成後宮，還詭辯為何小紅帽與大野狼上床，卻只有大野狼受罰。律師張正煦認得疑犯就是他初入行時的客戶，當年負責為其洗脫性侵罪名，求勝心切， 才發現從此背負愧疚。如今狹路又相逢，他能否彌補過錯，把慣犯大野狼繩之於法？律師出身並攻讀電影的唐福睿，結合法律知識與戲劇創作，探問法庭是否真能伸張正義，保護受害一方。台北電影節閉幕電影，台北電影獎六項入圍。

　初出社会的人权律师张正煦（张孝全 饰），首次承办案件便是震惊社会一时的补教名师性侵案，案主汤师承（李康生 饰）不仅利用童话故事哄骗年轻女学生，更假借交往名义与她们发生关系。涉世未深的张正煦为求表现，想尽办法要夺下官司胜利，希望能在工作上有所成就，却没发现心仪的对象女高中生陈新（江宜蓉 饰），正一步步落入汤师承所设下的圈套……

A cold, hard-nosed lawyer, Zhang, discovers that his past client, Tang, is involved in yet another case of sexual assault. Thirteen years ago, Zhang was a rookie and mentored by a senior lawyer, Tu. Young and ambitious as Zhang was, his outstanding performance successfully helped Tang exonerated from the charge. However, the brutal cross-examination on the victim inevitably became his nightmare. After so many years, tormented by guilt, Zhang finally has the opportunity to atone for his mistakes and avenge the girl he loved. Challenged by Tu and Tang, he decides to pursue justice at any cost.