A teenager's life in a quiet suburb changes drastically when John Wayne Gacy, a famed serial killer, becomes his neighbor. His curiosity leads to dark secrets and a frightening journey from innocence to a dire clash with evil.
Unfortunately the movie Gacy: Serial Killer Next Door is not yet available on HBO Max.
| Production | Cher Rue | Executive Producer |
| Costume & Make-Up | Marcelle Chamlee | Costume Design |
| Directing | T.J. Battle | Second Assistant Director |
| Directing | Gordon Hinchen | First Assistant Director |
| Crew | Hank Baumert Jr. | Cinematography |
| Sound | Sam DeSalsa | Foley |
| Lighting | Mike Boutell | Gaffer |
| Production | Candy Diez | Executive Producer |
| Costume & Make-Up | Bahieh Claggett | Makeup Department Head |
| Sound | Robert Arzola | Music |
| Sound | Tony Marguiles | Foley Artist |
| Writing | Michael Feifer | Writer |
| Camera | Jon Heus | First Assistant Camera |
| Production | Mason McNulty | Executive Producer |
| Camera | Wesley Claggett | Camera Operator |
| Sound | Greg Vossberg | Supervising Sound Editor |
| Directing | Michael Feifer | Director |
| Production | Diane Warlick | Executive Producer |
| Editing | Michael Feifer | Editor |
| Art | Samuel Saldivar | Production Design |
| Sound | Greg Vossberg | Sound Mixer |
| Production | Michael Feifer | Executive Producer |
| Production | Cindy McNutty | Executive Producer |
| Production | Cindy McNutty | Producer |
| Production | Michael Feifer | Producer |
| Sound | Wesley Claggett | Sound Mixer |
| Sound | Greg Vossberg | Sound Designer |
| Sound | Max Vossberg | Foley Editor |
| Sound | Greg Vossberg | Dialogue Editor |
| Camera | Hank Baumert Jr. | Director of Photography |
