In the sultry heat of Brazil, neglected wives transform into siriricas, lascivious and uninhibited. They strip down, their curves on full display, and surrender to their carnal cravings. One wife, her husband away with his mistress, sprawls on the bed, her fingers exploring her slick folds, her hips bucking as she rides her hand to orgasm. Another, her husband's infidelity fresh in her mind, stands before the window, her reflection revealing her secret pleasures as she rubs her clit, her body trembling with release.