The opening scene features the lead actors from all three of the films in Andy Stewart's body horror "trilogy", Sammy Hayman, Austin Hayden and Gordie Holliday.
Billy Hay, who plays "The Tattooist" is actually a multi-award winning tattoo artist, effectively playing himself.
Cinematographer Alan C. McLaughlin delayed shooting on set every day until the sun was in the correct position to cast beams of light into the room.
While the main film was shot on a RED Scarlet, the teaser trailer was shot on a RED Epic after production had wrapped and filmed in one take before the set was dismantled.
The film was shot in an abandoned house in Glasgow, leading to director Andy Stewart and production crew being forced to sleep on the set for security reasons.