This film is a fun spoof, based on the real-life 70s Patty Hearst kidnapping. In the movie, a young affluent woman named Charlotte Cane, is kidnapped and held for ransom. Her kidnappers are a group of radical revolutionaries, who are holed-up in a grungy hideout, in the Oakland ghetto.
They're a mixed-race bunch, who are committed to camaraderie, and saving the 'people' from the oppressive 'insect pig' capitalists. This band of freedom-fighters, are also dedicated to having lots of sex with each other. There's plenty of juicy sex scenes, including both interracial and lesbian trysts, between the group members. The sex in this film, is very graphic indeed, including showing lots of male full- frontal nudity.
Charlotte gets caught-up in the lustful antics of her kidnappers, and has marathon sex sessions with them all. She enthusiastically enjoys her newly uninhibited sexuality, that the kidnappers have awakened in her. Charlotte also becomes sympathetic, to the radical extremist cause of the group. She even renounces her name, choosing to be called Tanya instead. So, Tanya has to decide if she really wants to return to her former affluent, sheltered existence, when she gets the chance to do so.
If you like 70s sexploitation movies, that emphasis sex over other aspects of plot development, then you'll really enjoy Tanya.