Minnie Goetze is a 15-year-old aspiring comic-book artist, coming of age in the haze of the 1970s in San Francisco. Insatiably curious about the world around her, Minnie is a pretty typical teenage girl. Oh, except that she’s sleeping with her mother’s boyfriend.
For Tobe, a nerdy, horny, frizzy-haired cineaste who doesn't quite fit in with the average contemporary teen, the pinnacle of womanhood is Monica Velour, a soft-core actress who reached the zenith of her career in the 1980s. When Tobe learns that his love idol is headlining hundreds of miles away at the Gentlemen's Petting Zoo in Indiana, he drives off with carefree glory, filled with the hope of meeting her.
When a group of naive teens working at a movie theater in a small Christian town discover a mysterious film hidden in its basement, they unleash an alluring succubus who gives them a sex education…written in blood.
After returning to Los Angeles from a group therapy session, documentary filmmaker Bob Sanders and his wife, Carol, find themselves becoming vigilante couples counselors, offering unsolicited advice to their best friends, Ted and Alice Henderson. Not wanting to be rude, the Hendersons play along, but some latent sexual tension among the four soon comes bubbling to the surface, and long-buried desires don't stay buried for long.