A heartbroken sound technician can't get over the girl who leaves him without a word. He collects sounds on tape and sends them to her. A girl named Ryo-yun who is involved with a married man keeps receiving the tapes by accident. Temptation leads her to track down to the sender as well as the sound that's echoing in her head. A recently divorced psychiatrist embarks on a soul searching journey and meets the sound technician. Will these three lonely souls eventually find the place that is the closest to their hearts?