K, a primary school teacher, is in love with Sumire. But Sumire is in love with an older woman – Miu. Frustrated, K has an affair with the mother of one of his pupils. Then Miu asks him to meet her as something very strange has happened to Sumire.
Sumire is in love with a woman seventeen years her senior. But whereas Miu is glamorous and successful, Sumire is an aspiring writer who dresses in an oversized second-hand coat and heavy boots like a character in a Kerouac novel.
Sumire spends hours on the phone talking to her best friend K about the big questions in life: what is sexual desire, and should she ever tell Miu how she feels for her? Meanwhile K wonders whether he should confess his own unrequited love for Sumire.
Then, a desperate Miu calls from a small Greek island: Sumire has mysteriously vanished…