Mrs. Hirose, a petite and obedient housewife, unexpectedly experiences her first heat in years. Her normally neat and tidy house is now filled with the musky scent of her arousal. As her temperament shifts, she becomes more assertive, tearing off her clothes and hiding under the table. Her husband, surprised by this change in his wife, hesitates before joining her below the surface. The scene takes a dark turn as they engage in rough and primal sex; their moans and grunts muffled by the floorboards. Their lust-filled frenzy knows no bounds, and they violently take each other without restraint. Blood is drawn and saliva flows freely as they mark their territories on each other's bodies. This once neat and clean Asian wife is now a wild beast, driven by her newly awakened instincts.