Series of bucket-killing murders happening in the city. Failure to resolve by police, a team of CBI Officers under CBI officer Sethurama Iyer take up the investigation to resolve the never experienced mystery.

Viswambaran is a vain and egoistic college lecturer. The story takes a comic turn when a police officer who had once arrested him for alleged soliciting moves in next door, reigniting past tensions and triggering a series of humorous situations.