Suriyabandara is a wealthy businessman descended from a high class up country background. He is a widower and lives with his mother Sybil and son Akalanka. In memory of his late wife he starts an orphanage and it is run by Theresha, a strict disciplinarian in her middle age. She thinks that discipline could be instilled in children only through punishment. Percy, the shrewd accountant in the orphanage, misuses and extorts money. The administration of these two have negative influence on the children and the discipline in the orphanage is badly affected. Suriyabandara who realizes the ongoing changes decides to stop the orphanage. But Akalanka and his grandmother think the orphanage has to be continued somehow at least as a respect to Akalanka's dead mother. And they decide to recruit a new mistress and called for interviews. One qualification is that the applicant should be over 30 years of age. A large number of prospective candidates who are in their middle ages come for the ...