Review of Bullet Ballet

Hi everyone. I am huge fan of Japanese cinema. I have already watched movies form Takeshi Kitano, Shinya Tsukamoto, Toshiaki Toyoda and Yôji Yamada. Also I very like Roman Polanski works (Rosemary's baby, Tenant), Chan-Wook Park (Mr. vengeance, Oldboy...), Kim Ki-Duk (Spring, Summer, Autumn, Winter... and Spring ...)

Can somebody recommend me more movies like Bullet Ballet, movies than contain exploration of human nature, especially their dark side. It isn't necessary that it is Japanese movie, or what is the movies age. All it matters is, that is contains such themes.

Thanks for help.