Why label it?
Actually, sounds like a lot of fun...
I would call it Post Modern Gothic Fantasy
A few years back (1995 I believe), when Origins was in Philadelphia, a group ran a World of Darkness live game that allowed PC's in all the genres of WoD and even included Devils (and I presume Angels as well, though I never never encountered any). With the gadgetry of the MiB the magic of the Garou, The Undead and the non-techno mages, it pretty much had the feel you are looking for, it was LOTS of fun.
"Signing this contract won't make you evil dear boy, if you weren't already amenable to my proposition I wouldn't have offered it in the first place..."