Sophie is young and beautiful with a successful career. Her passionate affair with Italian banker, Roberto, soon progresses beyond conventional sexual attraction. As Roberto tests her limits, Sophie discovers a deep longing for discipline and the pleasures of submission. Eventually, Roberto's friend Alex invites them to become members of the Society, a secret and tightly regulated fraternity of men who hold their women in common. In an elaborate initiation ceremony, she vows to make herself available to any member who requires her. She'll be summoned at a moment's notice to the apartments and offices of the Society's members. Just how far will Sophie go to prove her love for Roberto?