Two twin brothers, Shane and Abel, attend the reading of their recently deceased uncle's will. It turns out that he has left everything to Shane and nothing to Abel. In order to claim his inheritance, the will states that Shane must perform certain odd tasks. Abel sets out to thwart Shane's efforts to follow the rules and try to claim the inheritance for himself.

Fashion designer Gene's secretary Elley gets him to betray his loving buxom wife Debbie, who finds comfort in old acquaintance Tony. Chaos prevails as Debbie's sister drugs everybody's food and date rapes Gene's important client.

The story of seduction continues from the Scott family to the McBride’s, where mother and son, brother and sister, father and daughter enter the perverse world of incestuous pleasures.