Alice in Acidland (1969)

Cute and perky college student Alice and her cute and perky friend Kathy are invited to a “pool party“ by Frieda, a female teacher who is actually a lesbian. At the party Alice gets drunk, takes acid and takes a bath with Frieda. Later Alice gets mixed up with LSD-addicted hippies, rape, more lesbians, more LSD, orgies, suicide, and having sex with guys who keep their boxer shorts on while doing it.