Interior scenes were filmed at the Rajnagar International Restaurant, Solihull (with inserts shot nearby at the home of producer Steve Green). The final shot of "Alex" was filmed on parkland near the Birmingham home of actor Demelza O'Sullivan, who played the character.
Although there had been a cast and crew screening four weeks earlier, the film received its public premiere at the second annual Grindhouse Planet Film Festival, held in Leicester on 26 November, 2017.
The book seen in the opening sequence (with a fake cover) is actually Adam Nevill's novel Under a Watchful Eye.