The tone of "Supernatural" was heavily influenced by films such as "Poltergeist"—having the horror happen in a family setting rather than remote location—and "Evil Dead II" and "An American Werewolf in London"—having bits of comedy mixed in. Commenting on the former, Kripke said, "It's the idea that horror can happen in your own backyard. How many viewers have to worry about the vampire in the gothic castle?" "It's always been a show about "family"." Other influences include "The Two Sisters" and Asian horror films "The Eye", "Ju-on", and "Ring".