Damien Chazelle's movie Whiplash is the perfect representation of what a toxic student/teacher relationship can be. J.K. Simmons portrayal of Terence Fletcher will forever be one of the most terrifying and chilling representations of the mental stress a teacher can put on a student. Terence Fletcher is a manipulative and sociopathic teacher at a top music school, using his tactics to bend the will of his students into what he believes is greatness. Whiplash would not hold the weight it does without Terence Fletcher's insanity on screen.