Lighto, the useless brother-in-law who is on leave, is shunned by his family and, with the help of the summer heat, has been bottling up his pent-up feelings. This frustration is directed towards his younger brother's beautiful wife, Kana. While his excellent younger brother is away on a business trip, Lighto finally assaults Kana. In the scorching heat, Lighto, drenched in sweat, unleashes his desires upon Kana, who cannot resist him. Upon hearing that her husband is returning home, Lighto rapes Kana as if it were his last chance.
