Wes Craven is a well known American film director and producer, most famous for films such as 'A Nightmare on Elm Street' (1984) and the 'Scream' franchise (1996-2011).
His theory says that Horrors are more effective in stereotypically safe places, such as family homes, which is where Craven usually sets his films.
His theory also states that there is usually an absence of authority, such as an absence of parents. which removes the feeling of security from the life of the main character.
(RC)