Relationships between men and women are always a labyrinth. One morning, the old man rides the elevator with Mirina, the girl who lives next door to him, for the first time in a while. That evening, he visits her house, bringing a gift. They are chatting about trivial things, but the old man senses something strangely sexy about Mirina's scleral eyes, and he can't help but bring up a dirty joke. Mirina, who is known in the neighborhood for being serious, is surprisingly receptive, and the two end up having sex on the spot. The two continue their relationship in secret, and no one knows that Mirina is a sadist, except for the old man...