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.