After his wife passed away, Kozo went to live with his son and his wife. His son's wife Maki was a little uncomfortable around Kozo, who was rough and taciturn. On the other hand, Kozo saw Maki as a woman, and before he knew it, he was always thinking about how he could make love to Maki. One afternoon, Kozo gave Maki some coffee laced with sleeping pills, and then he licked Maki body as his desires dictated.