The filmmakers used dark colors, a misty atmosphere, and flashbacks with black and white filters to conform to thriller conventions and make the film's tone dark, intense, and scary. Shadows on the actors' faces in dim lighting added to the mysterious and tense feel. Stereotypes of gangsters and druggies from other films informed the portrayals, including accents, costumes, bruises, and props associated with each role and genre. Locations like a dirty cellar and alleyway matched research on typical settings for torture and drug use scenes.