A contract killer escapes after murdering a politician and must help the cops find a murderer after a slain officer’s memories are transferred to his brain.

The film begins with Arivazhagan (Shirish Saravanan) along with his friend locking up an unknown man and torturing him with a camera filming the whole incident. The movie then turns to a flash back, where Arivu narrates how happy he and his family was. Arivu who is a writer for a press and the eldest son of a retired Police Head-constable and his wife, has a brother named Madhi who is a 1st year Engineering student. Arivu’s Middle-class family life is however happy with his friend Kumar (Sendrayan) mingling as one of the family. Problem begins when Madhi who is pressured by his Girl friend to get an expensive bike, persuades his family to get him a bike. Though hesitant at first, they agree to get him a bike of his choice. However, delay in getting his bike and seeing his classmate Ganesh (Nishanth) spending casually makes him curious to know what he does for money. This is when he is introduced to the heinous crime of chain snatching. Ganesh introduces him to Guna (Bobby Simha) who is heading a gang of young college going chain snatches. Madhi joins the gang and starts to earn through chain snatching, and gets all the things he wants. [3]

Balu (Vishal) visits his friend Karthik’s (Raja) home in Chidambaram after completion of engineering. He meets Hema (Meera Jasmine), Karthik’s sister, and they develop an affection which transforms into love. Kasi (Lal) is the local gangster in Chidambaram who is feared by the entire town. Balu, on his way back to his place, sees Kasi chasing a man with a sickle. When Kasi was about to kill the man he was chasing, Balu interferes and stops Kasi. An angered Kasi immediately tries to attack Balu, and to save himself, Balu retaliates by hitting Kasi. Only then, Balu comes to know that the person he hit is Kasi. To everyone’s surprise, Balu smashes Kasi in front of everyone and leaves.
Kasi is furious and wants to take revenge on Balu. Kasi’s men trap Karthik’s father and get to know about Balu’s native place. Kasi sets goons to kill Balu but gets shocked when he knows that Balu’s father is Durai (Rajkiran), a powerful man in Madurai, and it will be very difficult to attack them. Kasi leaves to Madurai and waits for the right moment to kill Balu and his family. Meanwhile, Balu meets Hema and her family at a temple. Hema’s father initially gets angry seeing Balu as he was responsible to bring trouble by hitting Kasi, but later, Balu convinces him. Both the families decide to get Balu and Hema married to each other.
One day, Kasi tries to kill Balu but instead attacks Durai. Durai understands that Balu is being targeted and decides to protect him. A localite in Madurai (Thalaivasal Vijay) hates Durai and his family and decides to help Kasi so Durai can get killed. Kasi decides to bring in violence during a temple festival day and utilize that opportunity to kill Balu and Durai. But Balu saves Durai and fights Kasi. In the end, Balu hits Kasi and leaves, challenging him to return if he still has guts to take revenge.

Aalwar (Ajith Kumar) is devoted to his mother (Geetha) and sister (Shwetha Bandekar). But the villainous elements Lal and Vincent Asokan kill the sister and mother due to an old dispute with Aalwar. Aalwar, with revenge ringing in his mind, ends up as a killer, even while working as a ward boy in a hospital. He rechristens himself as Shiva and is out to make a statement against the venal forces. He sees himself as some kind of avatar. In fact, he bumps off the baddies under the getup of Lord Rama and Lord Krishna. In the climax, Shiva turns up as Lord Narasimha and bumps off the last villain by placing him on his thighs and ripping apart his bowels and chest with his sharp claws. He successfully escapes from the police of Chennai and continues his process of “Dharma”.

Major Kathiravan (Vishal) is a military official who, with the hope of resuming his job, is working on anger management issues under chief psychiatrist Rathi Devi (Samantha Akkineni). Upon hearing his flashback, she counsels him to go to his village and spend time with his father (Delhi Ganesh) & sister (Darshana Rajendran). As a proof, she orders him to upload a picture daily on social media. Kathiravan, who hates his father due to his habit of borowing money , reluctantly does this and posts every picture on Facebook. Soon, he finds out about his sister’s love affair and wants to get her married to the lover, but his sister orders Kathiravan to stay away from her personal zone as he was never a responsible brother. Kathiravan realizes his mistake and finds out the truth that his sister’s future mother-in-law demands them to bear the marriage expenses which will cost around 10 lakhs totally. He promises to fulfill his sister’s wish.

The film revolves around Kathavarayan (Karan), who sells illicit arrack in Hogenakkal. Though he is involved in arrack trade, he is a man with golden heart. Malathy (Vidisha), a student, comes to the village as part of her NSS project. She vows to end the arrack menace in the village and takes efforts to arrest Kathavarayan. Thanks to her efforts, Kathavarayan gets arrested and lodged in prison in Chennai.
Call it fate, Malathy is arrested for no fault of her in Chennai. Her efforts to expose drug-pedlers in Chennai backfires. They hatch a conspiracy and Malathy falls a prey to it. She gets arrested for possessing drugs and lands in prison.

Maaran (Sathyaraj) is a clerk in the district collector’s office. His life centres around his loving wife (Seetha), his son (Raghuvannan), and his daughter (Preethi Varma). Soft-spoken, and a Gandhian to the hilt, Maaran does not stand by any smear on the Mahatma’s name. Being a staunch patriot, he had even named his son Sudhandhiram.

Raja (Rajinikanth), an expert thief is in love with Radha (Madhavi), a disco club dancer-cum-singer, who is unaware of Raja’s profession. Meanwhile an evil brother-sister (Vijayakumar-Anuradha) duo is bent on seeking vengeance from Crime boss Sudharshan, who cheated and siphoned Jwaala’s money. The duo hire Raja to break into Sudarshan’s treasury and perform the heist. But was caught by a jovial-cum-shrewd Inspector Rajasingam (Sivaji Ganesan) and awarded 2 years imprisonment, which shocks and devastates Radha.

Two conmen, who believe that money can solve all their problems, decide to extract money from wrongdoers. Trouble begins when a mad policeman crosses their way.

Rocket Raja (Karthi) is a small-time thief who steals anything he comes across. With his partner Kaatu Poochi (Santhanam), he enjoys life to its fullest and falls for Swetha (Tamannaah). However, his life changes when a small girl Divya Rathinavel (Baby Rakshana) ends up in his care; he looks exactly like her father Rathnavel Pandian IPS (Karthi).
As Raja discovers the girl’s past, it is revealed that Pandian is an honest policeman who is a nightmare to criminals, but that one gang of criminals in the village of Devi Pattnam are intent on killing him and his daughter because he killed the son (Amit Tiwari) of a prominent criminal Bavuji (Avinash), who also sexually abused women. Pandian’s colleagues put Divya in Raja’s care so that the criminals cannot take her. Pandian is on the verge of death following a gunshot to his head.

Aadhavan, a professional sharpshooter, gets a contract to kill Subramaniam, a prominent judge. He enters his house as a servant and wins the heart of his family members while plotting his death.

A village ruffian, who settles disputes in his native, takes on a big shot when he tries to sort out the rough patch in his marriage after several years.