36-year-old bachelorette Mami achieved success with an essay she wrote 10 years ago. Mami has since lost her way, and hasn't been able to write a hit piece. Meanwhile Yukino, who leads an independent life, Ayaka who is a housewife, and Miho, who makes her livelihood as a "daddy's girl", are each facing various difficulties in their own lives.
Анонимное письмо доставлено в столичное полицейское управление Токио. В письме говорится, что преступник по делу об убийстве появится на вечеринке обратного отсчета Маскарадная ночь, которая пройдет в отеле Кортезиа.
