Mother of Tears - The Third Mother - part 3 of the Three Mothers trilogy of Dario Argento
Very good film with unprecedented amount of gore. The ending was a bit cheesy though.
One man's noble quest to rescue his sister from life of forced prostitution. Some great fight scenes. Oh yeah, and there's also a woman in this movie that turns into a fucking Praying Mantis and brutally murders men after having sex with them!