Emperor Raja Raja Chozan seems to count a little too much on his newly-appointed, deceptive minister. But he knows what he is doing.

Guna (Kamal Haasan) is a mentally affected person and receives treatment in a mental hospital in Hyderabad. He does not like his father, and his mother Manonmani (S. Varalakshmi) is a moll in the house that they live. He assumes a fictitious character nam

Bala (Gemini Ganesan) and Bhanu (Jayanthi) are a happily married couple. Everything seems fine till Sheela (Vanisri) enters their lives. Bala is a tennis champion and Sheela claims to be his fan. The family members raise objection to this liaison but Bhan