A juvenile is mad at his mom so he leaves his home in San Francisco to join a charismatic LSD guru's cult in Spain and turns on, tunes in, and drops out. He also gets involved in murder.
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Hallucination Generation is a 1967 film by Edward Mann. Purportedly intended as a warning against the dangers of pill-popping Sixties hedonism along the lines of 1936's Reefer Madness, the film's primary purpose appears to have been titillation, thus landing it in the genre of exploitation cinema.