After delivering his drunken subordinate home, Maruyama unexpectedly meets the man's wife, Shinobu. As they both care for the unconscious employee late into the night, Maruyama ends up sharing drinks with her. Acting like a caring wife, Shinobu treats him with warm, maternal affection, yet gradually reveals her inner dissatisfaction with her marriage. Suddenly, she confesses, "Ever since we were dating, and even after marriage, I've never once been satisfied," directing suggestive remarks toward Maruyama's crotch. How will he respond to this married woman's bold advances? Each step they take is charged with emotional tension.