The fourth installment in the bold series depicting the forbidden sex lives of five families. A mother burdened with unfulfilled sexual desire turns her longing toward her own son. Her mature body can no longer be satisfied by mere masturbation as she seeks new pleasures. Provoking her son, she awakens his desire, and he, too, begins to crave her as a woman. The forbidden lust between mother and son gradually transforms into deep emotional attachment. As their relationship intensifies, they continue to cross new boundaries together.