Release Dates
| USA | 25 September 1963 | (Los Angeles, California) |
| USA | 23 October 1963 | (New York City, New York) |
| UK | 1964 | |
| Italy | 17 July 1964 | |
| Denmark | 18 November 1966 | |
| Mexico | 5 January 1967 | |
| West Germany | 18 October 1980 | |
| USA | January 1985 | (Sundance Film Festival) |
| Spain | October 1985 | (Sitges Film Festival) |
| Portugal | 2 November 1985 | (TV premiere) |
| Finland | 1994 | (video premiere) |
| Greece | 16 February 2001 | (DVD premiere) |
| Spain | 5 July 2006 | (DVD premiere) |
| USA | 16 August 2008 | (American Cinematheque's Festival of Fantasy, Horror and Science Fiction) |
| Finland | 16 January 2009 | (DVD premiere) |
| Spain | 26 December 2014 | (Valladolid) |
| Spain | 8 April 2015 | (Madrid) |
Also Known As (AKA)
| Bulgaria (Bulgarian title) | Луди сънища |
| Brazil | Dementia 13 |
| Brazil | Demência 13 |
| Germany (DVD title) | Fright Night |
| Denmark | Djævelens borg |
| Spain (cable TV title) | Demencia 13 |
| Spain (DVD title) | Dementia 13 |
| UK | Dementia 13 |
| UK | The Haunted and the Hunted |
| Greece (transliterated ISO-LATIN-1 title) | Parafrosyni |
| Greece | Παραφροσύνη |
| Ireland (English title) | The Haunted and the Hunted |
| Italy | Terrore alla 13ª ora |
| Mexico | Demencia |
| Poland | Obled |
| Portugal | Demência 13 |
| Sweden | Nattens skräcknäste |
| Soviet Union (Russian title) | Безумие 13 |
| USA (working title) | Dementia |
| West Germany | Dementia 13 |
