影片是讲述一个三角关系，老师，学生和父亲。

一个俄亥俄高中教师的完美的三角学教师，教练，父亲和设计师标签残骸佩戴的成员是有缺陷的，当他的职业生涯痴迷前妻在车祸中被杀。他华丽的17岁的学生，已经为他的欲望，为了杀了 - 第一次比喻，当老师拒绝她的进步字面上。如果对他的损失的悲伤不足以使他被占领，他的秘密崇拜者胜过一个虚假的强奸罪试图把他在一辆汽车里，并勒索她的手。完美的老师是一个全神贯注的痴迷。
当17岁的德文郡（梅根公园）爱上她有吸引力的新数学老师吉姆（大卫Charvet），她会停止什么，包括谋杀，以确保他们结束在一起。为自己与自己的女儿安妮奎（Keeva Lynk），并确保他目前的女朋友雷切尔（Boti Bliss）和前妻玛丽莎（朱迪斯·巴里贝）脱颖而出，德文的痴迷对吉姆的生活造成致命的伤害。

  The perfect trigonometry instructor, coach, father and designer label stubble wearing member of an Ohio high school faculty is flawed when his career obsessed ex-wife is killed in a car accident. His gorgeous 17 year old pupil, who already harbours desires for him, moves in for the kill – at first metaphorically, and when the teacher refuses her advances literally. If grieving for his loss wasn't enough to keep him occupied his secret admirer trumps up a false rape charge tries to run him over in a car and plays her hand at blackmail. The Perfect Teacher is an engrossing take on obsession..
  When 17-year-old Devon (Megan Park) falls in love with her attractive new math teacher Jim (David Charvet), she'll stop at nothing, including murder to make sure they end up together. Ingratiating herself with his daughter Annique (Keeva Lynk) and making sure his current girlfriend Rachel (Boti Bliss) and ex-wife Marissa (Judith Baribeau) are out of the way, Devon's obsession takes a deadly toll on Jim's life.