The film presents two main social groups: a mentally ill young girl named Emily who suffers from PTSD due to the traumatic death of her parents, and a mysterious stalker dressed in black who killed Emily's parents. Emily is shown to have nightmares, obsess over news articles about her parents' death, and visit the church where they died. The character of Emily was inspired by a character with PTSD in the film "The Perks of Being a Wallflower." The stalker's identity is kept hidden similarly to the character of Bill in "Kill Bill" and they are dressed in black to emphasize their villainous role.