The story is about Thilakan and his two adopted sons, one of them blind, Unni (Sreenivasan), and the other one deaf, Balan (Mukesh). The story takes a turn when the sons marry and their in-laws try to steal the family money. Krishnankutty (Jagathy) is the clever but honest caretaker for the deaf and blind siblings who is constantly at odds with their in-laws. The father (Thilakan), carries the burden of sorting things out.