Wanda, the Sadistic Hypnotist (1969)
We meet a man on the street who has just taken drugs. He gazes into a shop window and the statues of nude women become real. He then wanders down the street and into a movie theater. He watches first a feature on a nudist camp — standard fare in those days. Then begins a second movie whose titles are presented the same way as the one WE are watching. Every few minutes we shift from this movie within to the guy in the theater, just watching.
Okay, the movie within is of a fellow knocked cold by an automobile accident caused by our Wanda, an ultratall woman who is the leader of a gang of women hedonists. She takes our hapless Sylvester to her home, where he is whipped, bound, screwed and ultimately hypnotized.
Meanwhile, a sex maniac has escaped from the local "funny farm." The radio warns us that he is a sex-crazed maniac who (the radio tells us) goes berserk with drugs. This fellow — wearing a coat that says "State Fun-ee Farm" — shows up at Wanda's, where else? He seems to be the same guy watching in the theater, who, I think is the writer/director.
Hmm, starts to get interesting. He invades, whipping the girls and holding them at gunpoint. Sex, naturally. He frees the captive driver and together the two men find the LSD — a bottle marked "LSD" in inch high letters. Everyone takes it and what they see is the last 15 minutes but five.
The maniac is then returned to the loony bin, the motorist (Sylvester, hypnotized into forgetting) is returned to his repaired Buick. Our moviegoer leaves the theater, enters his car, runs over nails set by Wanda and is kidnapped like Sylvester was.
...this was the last movie that Gary Graver worked on before tying up with Orson Welles for Welles' most ambitious — and now lost, project.
(tedg IMDB)