Giallo is a 20th-century Italian thriller or horror genre of literature and film. Especially outside Italy, giallo refers specifically to a particular Italian thriller-horror genre that has mystery elements and often contains slasher, crime fiction, psychological thriller, psychological horror, erotica/sexploitation, and, less frequently, supernatural horror elements. In Italy, the term generally denotes thrillers, typically of the crime fiction, mystery, and horror subgenres, regardless of the country of origin.