Barbara Scott, distraught and yearning for her son Paul, turns to her younger son Jimmy. Jimmy discovers his mothers affair with his older brother Paul, and slowly his love for his mother turns to lust. Barbara, jealous of Jimmys girlfriend, begins the deliberate seduction of her youngest son. His lithe, muscular body enflames her with passions she knows she should suppress. At the same time, Joyce McBride, Barbaras best friend and confidant, is enjoying carnal gratification with her own son, Bryan. Taboo #3 takes us into the forbidden world of a mothers sinful lust for her handsome son. It delves deeper into the depths of raw passion than any other film.