Help

Rating: 9/10 (7 January 2006)

Can someone please explain this movie to me, I've watched it three times and I still don't understand it. Can someone please tell me who is who, and what everything means, because I am so lost, I've tried to figure it out and I can't. I understand Betty and Rita up until the music/concert thingo they went to, then all the characters make no sense to me, them included, why is everyones names changed around. What was with the dead lady on the bed, and the man in the coffee shop who had the dream and then saw that person/thing outside. And what do those small old man and lady have to do with anything. I am so confused about the whole movie, please someone explain it to me, lol.