Brian is a cop Justin is not "human"

[lattemiele]

I have read time ago one fic which I like read again. Brian is a cop in an imaginary reality. In this world it's possible to create a lover who is not human, justin to the beginning is one of them. A killer is killing the not "humans" with blue eyes and blonde hair and Brian is investigating to catch the culprit.
Someone can help me to find this story please. thank u