Name of a classic Italian crime movie.

I will name scenes that I have recollection of:
- A man defecating on a pier in the middle of the night.
-Discotheque with transvestites dancing and having dialogues between them.
-A couple having intercourse in a room of that discotheque are interrupted by a group of armed men, then the naked woman is taken away.
-A priest appears wielding a gun in that room moments after the woman was abducted.

Apparently it is one of those classic Italian crime movies with an erotic touch.