San is the son of Prachan Chalasai the Ministry of Finance who has great gift in oil painting oil. After finishing his studies in the Philippines, San returns to Thailand to marry Suwalee. San also learns that his father married a night club songster Marasee. He argues with his father, and he despises Marasee, making her charge him and making him angry. San runs down from home to stay with his friend Booma, but on the way he’s attacked.
When San wakes up, he finds himself in the harbor with no memory recollection. San wanders into an import company and the proprietor helps him and names him Siang. He works on the boat, and one day, it passes by Seechan Island. Siang hears beautiful singing and jumps off the boat. He swims toward the islet and becomes exhausted. As Siang sinks to the seafloor, Nid, a lady in the islet, saves him. Nid brings Siang to nurse in her home.