Dear Mr. Gacy (2010) 1993. Overachieving college student Jason Moss, fascinated by serial crime, decides to write his criminology class term paper on John Wayne Gacy, who is on death row and scheduled to be executed in six months time. Jason's criminology professor, Mr. Harris, will only allow Jason to write his paper on Gacy if Jason can come up with a fresh angle, as he himself believes the topic of serial killers is already overexposed. After writing Gacy a nondescript letter and receiving a questionnaire from Gacy in return, Jason believes the fresh angle would be truly to get inside Gacy's head, specifically to learn what makes him tick, by presenting himself in subsequent correspondence to Gacy as Gacy's