A youth in need for money to get his eye-sight back on track uses the keen observation skills his limited vision provides as consolation to his advantage as he blackmails his way past two suspects in the murder of a girl in his neighborhood. The story unravels to show if his purpose gets served and if the murderer is found guilty.

In a tiny concrete-and-tin Chennai home in the slums live two young brothers with their mother and grandmother. With the boys’ father in prison for unknown reasons and with an ageing mother-in-law, the mother does her best to keep the kitchen fires burning. The brothers spend their time playing games and stealing and devouring eggs from crows’ nests. Their love for these eggs leads them to start calling themselves “Periya Kaaka Muttai” ( Big Crow Egg) and “Chinna Kaaka Muttai” (Small Crow Egg).
The young boys constantly beg their mother and grandmother for toys they cannot afford, and later for a television. They don’t yet understand that the two women can’t give them everything they want. When their mother and grandmother finally do bring home a television – a gift from the government to ration card holders who live below the poverty line – it’s like the opening of a portal. The boys see a pizza commercial on TV whose steaming, slow-motion images make the unfamiliar food look like manna from heaven. Meanwhile, a brand new pizzeria comes up in the neighbourhood, and actor Silambarasan alias Simbu comes to its opening. Remembering the looks of enjoyment on Simbu’s face when he tasted a pizza at the pizzeria, the boys thereafter think of nothing else but getting their first taste of a pizza.

It is all about the life and times of two kids Periya Kakka Muttai (Vignesh) and his younger brother Chinna Kaaka Muttai (Ramesh) growing up in a slum, who make their living stealing coal from the railway yard. Their father is in the jail while mother (Ishwarya Rajesh) brings them up. The urchins have their own dreams like any other kids and here, they want to try out a Pizza from the newly opened Pizza shop. Their curiosity about pizza is because, the new shop is opened by Tamil star Silambarasan. They decide that by hook or crook, they will gain entry into the upmarket Pizza shop and have a slice of it with their own money. Will they succeed in their attempt ?

Faced with several debts, a village accountant Gandhi Arumugam (Vijay Sethupathi) leaves his village near Madurai to head to Chennai with his best friend Muthupandi Selvam alias Pandi (Yogi Babu) to get all the documents necessary for going to London, where they plan to make money to pay off their debts. They approach two middlemen to help them get the passport and British tourist visa necessary for them to go to London. The middlemen claim that the British Deputy High Commission would prefer to give tourist visas to those who are already married, so the duo are forced to add their “wife’s” name while applying for the passport, with Gandhi adding his “wife’s” name as Karmeghakuzhali, following a suggestion from their real estate broker, Murugesan (Singampuli). However, Gandhi’s visa application is rejected, forcing him to remain in Chennai and take up a job as an accountant with a drama troupe Stray Factory, run by Master (Nassar), while Pandi passes his visa interview and leaves for London with the help of a passport officer, Kumar (S. S. Stanley).