When Norman Graysmith is invited into the home of an aspiring serial killer, Aidan Mendle, he believes he has the subject for the documentary that will make his career.
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| Directing | Conor Boru | Director |
| Writing | Conor Boru | Screenplay |
| Writing | Ed Hartland | Screenplay |
| Directing | Toby Kearton | First Assistant Director |
| Sound | Michael Palmer | Original Music Composer |
| Camera | Adrian Musto | Director of Photography |
| Editing | Alan Rae | Editor |
| Production | Conor Boru | Producer |
| Production | Ed Hartland | Producer |
| Production | Dom Lenoir | Producer |
| Production | Jared Rogers | Producer |
| Production | Lucinda Rhodes Thakrar | Co-Producer |
| Production | Jourdan Prince | Associate Producer |
| Production | Yasen Atour | Executive Producer |
| Production | Octavia Gilmore | Executive Producer |
| Production | Kavé Niku | Executive Producer |
| Costume & Make-Up | Sophie Leatherby | Hair Designer |
| Costume & Make-Up | Sophie Leatherby | Makeup Designer |
