Hell's frozen over

Quick, rec me a Snape/Harry fic! I want: book canon, preferably set during/shortly after OotP, angry!Harry and bastard!Snape (also known as IC), no romance, no love, just need. I also want plot and porn (violent rather than vanilla). I don't want: mushy I've-always-loved-you scenarios and mutual forgiveness.

I know such fic exists somewhere. Tell me where before the urge to read it subsides.