Overview
Dear Mr. Gacy is a 2010 Canadian drama thriller film directed by Svetozar Ristovski, and starring William Forsythe and Jesse Moss. The film is based on Jason Moss's memoir The Last Victim.
Plot
As part of his college thesis, Jason Moss (Jesse Moss), a criminology student, decides to write to John Wayne Gacy and attempt to gain his trust through impersonating a typical victim or admirer.
Moss sends a carefully crafted letter to Gacy (William Forsythe) in prison, portraying himself as a vulnerable, sexually confused boy. The letter is an intricate plan to get inside Gacy's head in hopes of uncovering new information regarding his murders that will aid Moss in writing a standout term paper.
The film unfolds as Gacy, suspicious at first, puts Moss through intense emotional tests via letters and collect calls, all of which leads to strained relationships with his girlfriend and family. Gacy tries to convince Moss to become a hustler, and Moss lies about having his wallet stolen by a client. After hearing that, Gacy offers to have the man's penis cut off, saying he's very protective of people he's close to. Gacy even asks Moss to convince his younger brother, Alex, to send Gacy a letter, and suggests that Moss molest the boy after hearing he gets beat up a lot. That makes Jason avoid Gacy's calls for a few days, making Gacy angry and suspicious that he is writing to another inmate.
From Wikipedia (CC BY-SA 4.0).