Hello movie is about Shivaraman (Mohanlal) who is a lazy advocate, popularly called as Shiva. Even though an advocate by profession, he spends more time to booze than to be in court. And at those times, he is a known troublemaker of the city.
One of the best friends of Shivaraman is Chandy Kunju (Jagathy Sreekumar) who is a Sivaraman's benefactor. He is a little handicapped but he is more a law breaker and a regular client of Sivaraaman.
Parvathy (Parvathi Melton) who is the daughter of a private moneylender (Janardhan) who develops an interest in the troublesome ways of the advocate. Sivaraman had taken to drinking because of a great tragedy in his life, after which he presumes that it is better to be a drunk than be normal.
On a sunny day, he receives a phone call, which is all set to change his life once again.