The final reveal was interesting. However, everything else from acting, music, dancing, costume, was below average; and there were too many holes in the overall story.
Start with Phương; she knew the gang, Cường and Thiện, were "đại gia" and cannot be trust. She showed up that the night club WITHOUT bodyguards. She did challenged the men that her alcohol tolerance was high.
With Lý, besides her inability of acting, except for screaming loudly, she does not have dancing and singing skills. She will need a lot more than Voodoo to help her in this real world.
Dialogs did not help the movie either. The entire movie, Công An, Police, did not do anything, except for showing up at the end. Ly's friends dialogs seem to be more interesting.
It is NOT easy to make a good movie. Be original, be authentic. Have a good story line. Have acting talents. Cute face, flashy costumes are not it.