Erotic Inferno is a 1975 British sex film, directed by Trevor Wrenn, and starring Chris Chittell, Karl Lanchbury, Jennifer Westbrook, Heather Deeley and Mary Millington (under her married name Mary Maxted). It is also known by the alternative title Adam and Nicole.

The making of the film was documented by the Man Alive (BBC) programme, in an episode about the British sex and horror film industry of the mid-seventies, titled ‘Man Alive: Xploitation’. The programme shows producer Bachoo Sen and director Trevor Wrenn trying to cast the role of ‘an English rose who can ride a horse’ (this is presumably the role played by Heather Deeley in the film). A screening of the dailies in the programme shows the film to have been shot in the ‘Italian style’ of having the director talk to the performers whilst they act, meaning the film would have to be later re-dubbed. The programme also reveals the film's writer ‘Jon York’, was actually a student at York University, and is seen writing the script in the university's library. The film is referred to by its shooting titles The Will and The Willing Sex during the programme. Shooting started on 8 February 1975, and the film was released on 8 May 1975. The house used in the film was at the time owned by a famous racing driver.

Erotic Inferno is also notable for being one of the few British sex films to have been viewed by moral reformer Lord Longford, who saw the film and two others in 1975 in order to gain first hand experience of sex films, so that he could then morally condemn them. Longford saw the film on a double bill with Hot Acts of Love at the Astral Cinema complex in Soho, he later went to see How to Seduce A Virgin, directed by Jess Franco, but walked out. These three films were all later reviewed in Cinema X magazine under the banner "Lord Longford - We rate his selection".