The only expectation I had for this movie...

I wasn't really expecting much for this movie when I first saw it only because I didn't know what to expect...the only thing I did expect was, the summaries always say Coffy's a nurse at the hospital, and her sister is injured by contaminated heroin, which led me to believe that it would open up with her working at the hospital, and the doctors rush in with her sister on a gurney, and when she finds out what happened, THEN she would go on her vigilante rampage. That's the only thing I had expected to see in this movie that I was disappointed...however the film in itself doesn't disappoint at all.