I'll summarize the movie then give my opinion.
Cherry is a bipolar lady who has a gang (in a deserted building) where Playboy and Gold Hair prostitute. James is an drug addict ( who in the movie "Bittersweet Chocolate" meets Playboy) who is the "trusted" of Cherry. Boy is Cherry's "sex instrument". James, Cherry and Gold Hair are in love with Playboy but Playboy is in love with Boy. James gets tired of Cherry and decides to betray her and free Playboy and himself (at the end, we don't know who finishes dead; James or Cherry) but Playboy leaves with Boy.
Lady Boy is Big Boss' "trusted" and "supervisor". The Man that at the end 'plays' with Playboy is Stranger (just a common client that somehow manages to know that Playboy has feelings for Boy).
I hope that helps...

My thoughts on this are:
I believe the story had more potential. The music was funny (because of the lyrics) but it was too spontaneous and loud. Still liked the music thou... As for acting, it was phenomenal, it was very good. I don think I'll re-watch it anytime soon but that's because I don't normally re-watch things and it was too slow (not as much as Bittersweet Chocolate).