As the metropolis sizzles in early summer temperatures, identical twin sisters Deana and Delia Ferraro are cooking up a heatwave of their own. Surrounded by an atmosphere of relentless humidity, the sisters find themselves rivals for the attentions of Jackson de Guile—a wealthy entrepreneur and master of power dynamics—who draws them both into a web of luxurious debauchery. Their erotic encounters become increasingly bizarre as Deanna and her twin vie for the rewards that pleasuring him brings tainted rewards that only serve to confuse their perceptions of the limits of sexual experience.