Song Title Help and Lyrics

[mok__]

There's a song that plays in the first episode of Wolf's Rain from where the scientists are talking about Cheza in the lab until Kiba gets shot by Quent.
It's to the tune of "Heaven's Not Enough" sung by a female.
I really like it but it's not on any of the OSTs and i can't seem to find it any where else. can somebody help please? :(