Creator Jace Pickard sprained his wrist on set doing his own stunts in one of the home invasion scenes.
The Juralak makeup took 4 hours to apply to each actor.
Creator Jace Pickard, Make-Up Artist Joshua Churchill and Actors Luke Davis and Eli Gallagher spent a 21 hour day on set, due to applying the Juralak makeup and then filming overnight.
The asylum scenes were shot at Prop Studios in Marrickville, Sydney, New South Wales.
An announcement clip was shot in December, 2016 to raise funds for the film. Principal photography for the full length feature began in April 2017.