504 is pretty well off the street; Betty must have assumed she was beyond the prying eyes of the clap-shoulders. A gal & her pal "shooting fluid" in the wee hours with four men twice their age? Couldn't it have been one of the wild Hollywood insulin parties so whispered about? Those diabetics and their hysteria.
Betty Thomas' last known address. Her murphy bed and corner sink soon replaced by spa tub and skylight. Stuff that, as the slums of the future, won't last nearly as long.