Yui, a woman married for 15 years. She had previously suspected her husband of infidelity. One day, she confirms her husband's infidelity. When confronted, the husband admits to it. After that, the husband becomes harsher towards her. The daughter hugs Yui who can't sleep. The family gradually falls apart... Yui wants her husband to experience the pain of being cheated on, so she meets a lover through a matchmaking app and has sex with him in front of her husband at home.
