Damayanthi Kariyawasam (Dhammi) (Anula Karunathilake) is a mischievous school girl. Sugath Weerasekara (Wickrema Bogoda) is a shy and introverted boy who is new to Dhammi's school. He is quiet and gifted at schoolwork. Dhammi is immediately attracted to him and they become friends. The friendship eventually develops in to a special relationship. Sugath, who has lost his parents when he was very young, has a brother who is attending university. He tells his brother, Sarath (Wijeratne Warakagoda) about his relationship with Dhammi. On the day of the final exam, Dhammi tells Sugath that she only loved Sugath as a brother and not to keep any further hopes about her. Sugath is heartbroken and comes home to meet Sarath. In the meantime, he passes his exams with flying colors and Sarath marries Champa (Sriyani Amarasena), who is willing to accept Sugath as her own brother. But Sugath is unable to forget Dhammi, and keeps thinking about her and begins to drink heavily to alleviate his pain. ...