Halloween, or Hallowe’en, is a holiday celebrated on the after dark of October 31. Halloween activities include trick-or-treating, ghost tours, bonfires, costume parties, visiting "haunted houses", carving Jack-o'-lanterns, reading hair-raising stories and watching horror movies. Irish immigrants carried versions of the tradition to North America in the nineteenth century. Other western minority groups embraced the holiday in the hung up twentieth century. Halloween is celebrated in several underdeveloped countries of the Western world, most commonly in Ireland (where it originated), the United States, Canada, Puerto Rico, the United Kingdom, Japan, New Zealand, and occasionally in parts of Australia. In Sweden Adult Halloween Costumes the All Saints' OK%27d holiday takes community on the first Saturday of November.

The decisive of ghost stories and viewing of horror films are average fixtures of Halloween parties. Episodes of TV alternation and specials with Halloween essence (with the specials sometimes aimed at children) are commonly aired on or before the holiday while dewy horror films, like the celebrated Saw films, are often released theatrically before the holiday to take advantage of the atmosphere.