Incubus' Catholic Theology
I thought it was unusual that the moral world of the film's characters seems to have been lifted from Catholic theology. I'm primarily referring to the senior succubus warning that Marc was in a state of grace (so that killing him would send him to heaven), and that committing an unrepented serious sin (murder) would cause him to go to hell. Seeing as how the plot (and his soul!) basically hangs on Marc deciding to have pre-marital sex or not, the definition of good and evil is very clear cut and arguably very Catholic. Plus, the characters definitely appear to be Catholic. In fact, at the end of the film I was somewhat expecting him to try to go to confession for killing the Incubus (but maybe just running to the church symbolically serves the same purpose).
Although I know the Catholic church back then had a lot of say in film censoring back then, I still find it unusual to see this theology simply assumed as a premise in a Hollywood movie. Perhaps this was the most easily accessible moral system for the film writer at the time, back when these values weren't so anathema to the popular culture. Thus, I'm not trying to argue this movie is a "Catholic" movie... but my main question is: am I off-base here and does that seem unusual to see this in a movie not specifically trying to officially push a "Catholic" viewpoint?
Also, is it me or did the main succubus (Allyson Ames) really not try very hard to seduce Marc? One would assume a succubus (a sex demon) would have more tricks to appeal to a man's lust. Maybe she just wasn't very good at it... :)