Diffrent name. Aka Female Jailbird

Few weeks ago I bought this movie in Hongkong.
this movie have the title "Female jailbird"
the cover is very wrong compared to the movie
has a asiagirl in chains and she is bloody and all her cloths are cut in small pieces on her body, I can not understand how this movie ever could have this kind of cover.
my first thought was they did a missprint and took wrong movie, but even in the scene selection it shows that bloody asiagirl in chains. to all actoress and actor is correct on the cover, so confusing...

was not that type of movie I expected to see, thought it was some type horror gore movie.
It is a good movie and very educating, prison dont solve any problem
so many more people get punished, than just the person who serve the time behind bars. Exelent drama, based on true story.