| Director | Lokesh Kanagaraj |
|---|---|
| Genre | thriller film |
| Country | India |
| Budget | ₹5 crore |
| Box office | ₹15 crore |
Barani V., an engineering graduate from small-town Trichy, arrives in Chennai to interview for an IT job in Business Process Outsourcing. Barani passes his interview with HR officer Aarthy and celebrates at a bar with his friends. Another man at the bar, Jeeva, has had an unrequited love for Aarthy since they were in college. In a flashback, goons threaten to throw acid in Aarthy's face if she responds to Jeeva's feelings. Enraged, Jeeva punches one of the goons. In the present, the goons recognize Jeeva in the bar and hire some gang members to beat him up. However, the gang members mistake Barani for their target and beat him when he leaves the bar, knocking him unconscious and stealing his phone and bag, throwing the latter into a taxi cab.
Nataraj has come to the city to seek medical treatment for his son while driving a taxi rented from gangster P. K. Pandian "P. K. P.". He finds Barani's bag in his taxi with his academic certificates, which he takes to the police station. In the morning, Barani awakens in the street and calls a friend to take him home. He boards a bus to his new job, to explain about his missing academic certificates. Jeeva boards the same bus to attend a job interview at Aarthy's company. He recognizes the goon who threatened Aarthy and attacks him with acid, then escapes with his friends. Barani is detained by the police, having unwittingly passed the bottle of acid to Jeeva. Fatigued by the hostility of the city, Barani argues with the police inspector who beats him until a constable intervenes. The constable talks with Barani at a tea stall, where Barani recognizes the man who told him to pass the acid bottle, and the constable arrests him.
The gang members plot to kidnap schoolboy Karthick "Karthi" for ransom, sending a man named Winnings to trick his teachers. Winnings is unprepared when there are five boys named Karthi, one of whom volunteers to go with Winnings in order to avoid a mathematics test. They take the boy but later realize he is the son of gangster P. K. P. Brani tells Aarthy that he no longer wants the job. She asks him to take the company's training so that she won't be held responsible for his quitting. They begin to argue about it and Jeeva, who is waiting for his interview, intervenes. The police arrive and take Jeeva away, saddening Aarthy who loves Jeeva but cannot accept his carefree nature. Barani tells Aarthy that he lost his academic certificates, and she agrees to cover for him for a day.
P. K. P. orders his henchmen to hunt down his enemies in a search for Karthi. The gang demand ransom and P. K. P. agrees to follow their instructions. Meanwhile, Jeeva is released by the police inspector, who is his uncle. Jeeva waits for Aarthy at a bus stop outside her hostel. Aarthy sees Karthi, who had escaped the kidnappers, hiding in a truck and instructs Jeeva to take Karthi home. Jeeva tries to call P. K. P. but his phone is off. He then meets his uncle and leaves Karthi in the police inspector's custody. Winnings, who is terrified of P. K. P., confesses the kidnapping to the inspector, who commands Winnings to go through with the ransom exchange. Jeeva arrives and realizes the situation. The inspector shoots P. K. P. and tries to shoot Winnings but Jeeva shoots the inspector in the leg and instructs Winnings to take P. K. P. and Karthi to the hospital.
Meanwhile, Barani is riding in Nataraj's taxi when they are stopped and attacked by the gang who believe they are spying for P. K. P. They threaten to kill Nataraj if Barani does not bring P. K. P. To allow Nataraj to escape and take care of his sick son, Barani fights back against the gang who he recognizes as his attackers from the bar. Barani's lost academic certificates are returned to his home address. Outside the hospital, Barani and Jeeva each talk to their girlfriends. They are about to introduce themselves to each other when they are challenged by another gang hired by the goon Jeeva punched. Jeeva and Barani charge toward the gang to defend themselves.