The story begins with a shocking scene: a man suddenly appears, watching Hitomi as she lies sleeping in bed, then drenches her in a stream of urine. Hitomi, a calm and gentle housewife living an ordinary daily life, harbors a secret sexual desire she can't reveal to anyone. To fulfill this hidden craving, she secretly decides to participate without her husband's knowledge, forced into the strange act of drinking and swallowing urine. The film portrays her desires and impulses that break free from the boundaries of normal life.