The leader of the police gives the order to STACEY, a young and innocent woman-cop, to infiltrate an illegal workshop which produces porn movies but also organizes orgies for depraved customers but … rich. For that purpose, she will have to be been thought of as an experienced hardeuse for whom the sex has no more secret and to take advantage of it to accumulate proofs against his employers. At first reluctant, the girl – Who claims himself virgin and, as such refuses itself to his fiancé “until the marriage” – Accept this very special mission. Stacey then gets acquainted with a world where to fire a shot “does not have the same sense as to the police academy. Very fast, she learns quite forbidden games and fashionable sexual perversions and plays her role with conviction. But, to her own surprise, she discovers … that she likes that.