ホリデイ・ホラー
"The expression 'adding insult to injury' is an excellent encapsulation of the motivation behind the horror movie obsession with holidays (aside from the obvious desire to brand a killer with a theme and costume that can be revisited many times within a lucrative film franchise). The holiday is a place for happiness and family... The horror movie loves nothing more than irony (except perhaps a good death scene), and there is very little more ironic than the fear and isolation of a horror movie taking place right in the middle of the festivities."