Ginger (1971)

The police suspect that a drug and forced-prostitution ring is behind the recent spate of kidnappings and disappearances, but so far they've been unable to infiltrate the suspects gang. To break the case, they recruit Ginger (Cheri Caffaro), a young woman from an upper-class family to act as bait for the kidnappers and hopefully lead the police to their hideout. It may sound like a foolproof plan to the police, but Ginger's the one who has to risk it all. The first film in the famous Ginger series.