Dag nabbit, what IS this song?

I know it’s a classic, and that within two answers, someone will come up with the answer. Even with the little detail that I have.

But DAMN man, I’ve been trying to find it on YoutTube and Google through lyric searching…and it will not come up.

Now I’m not sure what year this is, maybe the eighties? :/ And the only lyrics I remember are ’‘I am the mistress of the night’’. Or something very similar. A woman sings.

Well, that’s all I got.
Every time I try to find anything with this, I get results from a Goth group called Blutengel, which has been a long time favorite for me…it’s so weird getting something you like, but being pissed off at it, since it isn’t what I was looking for.

Does anyone know at all what this song is? I’m pretty sure it must have been pretty popular at one point or another.