Yoshiko, a veteran housewife celebrating her 20th year of marriage. Her husband, consumed by work, has forced her to take care of his senile mother, leaving Yoshiko with little freedom to leave the house and forcing her to decline invitations from friends. Gradually, no one reached out to her anymore. Her husband took her presence for granted, treating her as mere household furniture. Sacrificing herself endlessly for her family and mother-in-law, Yoshiko finally chooses to embark on a trip with a complete stranger. The emotions behind her decision and the struggles of her past life strike deep at the heart.