A single mother who becomes prostitute then she is killed then his son takes revenge

a single mother who becomes prostitute for money then she is tortured  by men and she is very beautiful . in one scene she is bondage by a man is hitting her and then she spits on his face and then another man comes to help her and cut that man penis with knife . in one scene she also have sex with old lesbian woman with taking drugs in her nose . then she killed by someone . Then a man kills all the people who tortured her and at the end that prostitute was hi mother his son is taking revenge from them

plz let me know the name of the movie and this movie is not english movie it another language that dont konw

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