Release Dates
| Spain | 1 January 1973 | (Spain) |
| Spain | 7 June 1976 | |
| France | 19 September 1976 | |
| UK | 15 October 1985 | (video premiere) |
Also Known As (AKA)
| France | L'homme à la tête coupée |
| France (alternative title) | Le viol et l'enfer des X |
| UK (video box title) | Crimson |
| UK (alternative title) | Crimson, the Color of Terror |
| UK | The Man with the Severed Head |
| Greece (video title) | I metamoshefsi |
| Soviet Union (Russian title) | Крысы не спят по ночам |
| USA (video title) | Crimson |
| USA (video title) | Crimson, the Color of Terror |
| World-wide (English title) | Crimson, the Color of Blood |
