Editing Horror film (section)

=== Christmas horror ===
{{Main|Christmas horror}}
[[Christmas horror]] is a film subgenre that emerged in the 1970s with films such as ''[[Whoever Slew Auntie Roo?]]'' (1971) and ''[[Silent Night, Bloody Night]]'' (1972),{{sfn|Newby|2018}} which were soon followed by the influential ''[[Black Christmas (1974 film)|Black Christmas]]'' (1974).{{sfn|Newby|2018}}{{sfn|Ulaby|2015}} Defining the Christmas horror genre has been described as challenging,{{sfn|DuPée|2022|p=6}} as it has generally been regarded as a sub-genre of the [[slasher film]].{{sfn|DuPée|2022|p=5}}{{sfn|Rockoff|2003|p=30}} Adam Rockoff, in ''[[Rue Morgue (magazine)|Rue Morgue]]'', noted that the sub-genre sits within a trend of holiday-themed slasher films, alongside films such as ''[[My Bloody Valentine (film)|My Bloody Valentine]]'' (1981) and ''[[April Fool's Day (1986 film)|April Fool's Day]]'' (1986).{{sfn|Rockoff|2003|p=30}} Others take a broader view that Christmas horror is not limited to the slasher genre,{{sfn|DuPée|2022|p=5}} noting how it evolved from the English Christmas tradition of telling ghost stories.{{sfn|Newby|2018}} Christmas in literature has historically included elements of "darkness"—fright, misery, death and decay—tracing its literary antecedents as far back as the biblical account of the [[Massacre of the Innocents]] and more recently in works such as E. T. A. Hoffmann's "[[The Nutcracker and the Mouse King]]" (1816) and Charles Dickens' ''[[A Christmas Carol]]'' (1843).{{sfn|Newby|2018}}{{sfn|Ulaby|2015}} Although ghosts have largely been replaced by serial killers, Christmas horror creates an outlet through which to explore "a modern reinvention of the Christmas ghost story".{{sfn|Newby|2018}}