Prison Girls (1972)

The First Real Adult Film in 3-D

Six female prisoners are given a weekend furlough to prepare them for their upcoming parole. While out, they all have miscellaneous sexual experiences, some good, some bad. One returns to her pimp even though he beats her, one overcomes her frigidity, one gets gang raped, two join in a threesome, and one goes back to her criminal lover shortly before the police show up.