There was a book I read in the 90's, I guess. Set in Paris, it followed a bunch of punks who spent their time having firework fights in the catacombs under Paris, skating the streets on their anti-gravity skates, dressed in leathers, high, listening to soundscapes mapped to the geography of the streets.
The hero meets a crazy uptown heiress and after having an affair that ends badly, she tries to kill him, so he gathers his friends and invades her family's flying pyramid home.
God, I loved this book and I can't believe it isn't a famous classic. I suspect I read it when I was like 14 and in fact it was rubbish. ...but I don't really believe that, the ideas in it were so good.
Oh, and there was a bad guy called Two Tone, because his hair was dyed two colours, only then he dyed it all one so they called him... shit, I can't believe how bizarrely memory works.
Please god someone tell me the title because it's killing me.