Tong and his best friend Tonkla leave the orphanage for a new life in Bangkok. At a part-time job, he meets the mysterious and dangerous Mark, a man who seems to have known him for a long time. When Tong accidentally bleeds from an injury, Mark's true identity is revealed as a vampire, and Tong's blood, known as "golden blood", is a deadly temptation for vampires.

Mark and Tong start living together, and Tong wonders if Mark's extreme care belies an ulterior motive. When the mysteries of Tong's life are revealed, he runs away, which leads Mark to protect him from the shadows.