Clara Reeves, a beautiful, inexperienced young girl of good family, is determined to find her sister who has disappeared under mysterious and provocative circumstances. Searching for a clue among her sister's possessions, Clara comes upon an elaborate, sinister-looking onyx ring with an ominous golden scorpion set into its polished face. This evil portent arouses Clara's worst suspicions and fills her heart with dread; but she screws up her courage and embarks upon an adventure which is to radically change the tenor of her sheltered life. Clara's amateur sleuthing catapults her into the thrill-seeking world of the weekend fun-and-games set where pleasure is pursued in all its infinite variety. Dedicated to the cause of finding her sister, Clara sheds her naivete and allows herself to be initiated by this crowd of voluptuaries into a labyrinth of sensual delights.
To her own surprise, Clara proves to be an adept pupil who quickly outstrips her teachers in mastering the erotic arts...