Her husband becomes involved with a younger female colleague, a Japanese language teacher, causing his relationship with his wife, Aki, to grow cold and distant, with barely any conversation between them. Reaching her limit, Aki begins inviting her former students over to relieve her pent-up stress and desires. When her husband notices what's happening, jealousy ignites within him, driving him to desire Aki more intensely, pushing their relationship into even deeper and more complicated territory...