Hmm. A vampire PI, who has a forbidden love for a mortal?
What's that sound like then?
There's a few other new shows which don't sound particularly original. Can't remember their names, but one had a premise which seemed to be pretty much "Quantum Leap", while another sounded very similar to "Brimstone" (v good show from a few years ago, only lasted 1 season, had a dead cop sent back from Hell by the Devil to round up some escaped souls).