Filmed in Droylsden, Manchester in the summer of 2021
In Dry Valley Police Station a wanted poster for Nicholas Swann the main villain out of The Dead Ringer franchise can be found on walls in numerous rooms confirming The Dead Ringer franchise is part of SCU (Sounder City Universe)
The film was shot originally in the summer of 2013 before being cancelled by the studio. Fade To Blood Films took over the project in March 2021 and filming began in May of that year
Sounder City Vale where The Gasmask Killer lurks is an agricultural attraction that ovals the city and can be accessed anywhere in the city with 103 gates located around the city leading to the vale
Dry Valley where the film is set is considered to be the "Skid Row" of Sounder City