'When crusty Irish detective Tom Shanahan is assigned to investigate the bizarre murder of the lovely Luna, he has a hunch that he is dealing with more than the death of a high class call girl. His uncanny intuition picks up a trail of clues which enable him to penetrate the secret world of the Cult of Diana, a neo-pagan religion operating behind the front of an evangelical church. He peels off layer upon layer of deception to reveal the true working of the cult, and to expose the hypocrisy of the powerful men and women who run it for profit and enjoyment...'
Source: Screen Australia. (Sighted: 23/1/2014)
Barring the Screen Australia record (http://www.screenaustralia.gov.au/find-a-film/detail.aspx?tid=6530), little information is available on this film.
The production company behind this film was better known as a producer of sex comedies/soft porn films.