Under the instructions of director Sean Byrne, Robin McLeavy prepared for the role of Lola by researching the serial killer Jeffrey Dahmer, as well as watching Misery (1990), Natural Born Killers (1994) and the works of Quentin Tarantino.
The Texas Chain Saw Massacre (1974), Carrie (1976), Misery (1990), and Audition (1999) all served as inspiration for the film. Lola's pink dress in particular is an homage to Carrie's pink prom dress.
The movie was filmed in only 4 weeks.
Lola injecting Brent's vocal cords with bleach is similar to real life serial killer and torturer Robert Berdella who would do the same thing to a number of his victims for the same reason.
Despite playing teenagers, Xavier Samuel was twenty-five, Jessica MacNamee was twenty-three and Robin McLeavy was twenty-eight at the time of filming.