Just coming out of the jail, depressed and close-hearted, Ah Yu met two men with different characters from each other. One is a businessman, charming and mature; the other is a young supervisor in a factory with a promising future. But these two loves are short-lived, fading away like bubbles on the beach. With a wounded soul, she went back to the cottage owned by Sister An, a friend from jail. An treats her like a sister, embracing her tortured soul. When they are unhappy, they dance on the pier. Their dancing steps swing like small boats in the harbor, driving away all the depression. Someday, a puppet show was performed on the pier. They saw a fisherman, Lao-Yao, playing a puppet. Through Lao-Yao who suffers from autism, Ah Yu found herself tangled in a feeling as deep as the ocean.