What anime is this?

I remember I used to watch a anime on Netflix and I can t seem to remember it! Also, I don t really remember much about it but that it was a horror and there was this guy who would pierce this girl with knives and the main character was a female ( a detective maybe ), she had to go to a different dimension to save the love of her life. She also had green/black hair, and the title of the anime started with an m Please help me!

Shawna2015-06-20T14:49:00Z

Possibly Rin Daughters of Mnemosyne.

https://en.wikipedia.org/wiki/Mnemosyne_(anime)

Uncertain2015-06-20T09:05:31Z

Mirai Nikki? Not sure