In a tragic accident, Kathiravan loses his wife and his left leg. A few years later he decides to get a prosthetic leg with the compensation amount. Kathiravan's life gets more complicated when his daughter Magizh gets hospitalized.
Karthi leaves his house realizing that his father Muniyandi is the reason for his mother's suicide. Hence, father and son are at odds over everything.
Thiruchitrambalam is our Hero who is fondly called as Thiru. He lives in a middle-class flat in chennai with his father who is a police officer and Grandfather a retired bank employee. Thiru works in the delivery dept of a private company. He lost his mother and sister due to his father's carelessness which has made him not talk with his father for more than 10 years. His grandfather always tries to balance between both of them. Thiru tries to fall in love, but it always leads to a failure. Finally does our Thiru succeed in falling in love?