The early films of Nick Zedd are collected on Abnormal: The Sinema of Nick Zedd which i would heartily recommend. Geek Maggot Bingo attempts to shoot a horror film in an apartment complete with bizarre monster and woods. It’s a bit like Plan 9 from Outer Space – only more fun. Electra Elf is much later.
A good book on Zedd is his autobiography Totem of the Depraved.