Naachiyaar (Jyothika) is a tough policewoman in Chennai who is put in charge of solving an underage rape case. She tracks down a pregnant Arasi (Ivana), the victim, from her uncle and his goons who plan to get her an abortion. Although Naachiyaar saves Arasi, her uncle and his friends escape and go into hiding. Meanwhile, Naachiyaar’s partner, Feroz arrests the suspect, Kaathu (G.V. Prakash Kumar). He is then sent to a juvenile home, where he tells his story to one of the wardens, who is soft-hearted towards him.
Through flashbacks, we see how Kaathu and Arasi first met. Both are still teenagers from the slums but they do not go to school but are forced to work to help support their respective families. Arasi works as a maid at wealthy families’ homes while Kaathu does odd jobs for a living. One day, while her employers are away, Arasi invites Kaathu into the house where they (impulsively) make love. However, Arasi quickly regrets and pushes Kaathu away, who leaves upset.

Maasilamani aka Maasi (Nakul) is an orphan living in a lower middle class colony. With a heart of gold, he is a popular guy who takes up local issues, fights for them, and is considered a rowdy by those who do not know him. Enters the heroine Divya (Sunaina), a rich upper middle class girl who is a dance instructor and with whom Maasi falls in love at first sight. Divya shows aversion to his rowdyism and gets offended with his proposal. Maasi attempts to win her family by being a good person and dons another name, Mani. All are aware that Mani and Maasi are one person except Divya. When Divya finds out the truth, she gets into a dilemma as whom she has to choose. Bhoopathy (Pawan), the local corrupt sub-inspector who is also behind Divya, is determined to flop Maasi’s plans and prove Mani is Maasi. How Mani wins over Divya serves the climax of the movie.

Romeo lives a wealthy lifestyle in Bangalore, India, along with his widowed mother. He had received considerable assistance and encouragement from Raj Mohan to dance and sing, and as a result gets very popular with young women. He meets and is attracted to Madhu, who is also his fan. His mother meets with Madhu’s grandfather and both arrange their wedding. Then Romeo finds out that Raj Mohan has been stealing body parts, especially kidneys, from patients in the Satya Moorthy Hospital, and then getting them killed via bus accidents. He meets with Raj and warns him that he is going to expose him publicly. Before he could that Romeo is shot, taken by ambulance, and thrown off of a cliff. His friend, Prakash, is blamed for this, is arrested, tried in Court, found guilty, and sentenced to life imprisonment. But Romeo survives, is looked after by tribal people, and several months later returns to Bangalore to expose Raj – only to find a look-alike, a Chandaal (Hindu Undertaker) named Badshah, from Bombay, has taken over his life, identity, love, and is residing in his very own home!

Pullu Giri is trying to live a peaceful life forgetting his ruffian past in his hometown. However, he gets dragged into the affairs of the local goons and gangs after an incident, post which a ‘give and take’ drama with new baddies ensues.

When Tamilselvan, a courier boy, witnesses an assault on a social activist to whom he had to deliver a package, he learns it contains the evidence to a racket wherein doctors abort foetuses through an abortion-inducing pill.

Jai and Neha, eloping to Hyderabad to get married, offer lift to a stranger on the highway not realizing that he is a murderous psychopath.

The movie begins with Jeeva (Sketch) narrating his story. His uncle used to tow and bring back vehicles for which the monthly EMI had not been paid. However, during a fight, he loses his hand, and Sketch gets the job. Sketch does his day-to-day job perfectly. His uncle’s right-hand Ravi wanted to take over the business. However, Bhaskar Settu (Boss) agrees with Sketch coming up to the position. One day at a college, Sketch tows a scooter that belonged to Manju, Ammu’s friend. Another day, he happens to meet her on a bus. When some other guy tries to touch her, Sketch bats away his hand. At the same time, the bus stops quickly, causing Sketch to bump into Ammu. She mistakes this as him trying to make advances on her and yells at him. Only later does she realize he was trying to protect her, and she falls in love with him. One day, Sketch loses a bike while bringing it back to the garage. The owner gets angry and demands 2 lakhs from Settu. Sketch realizes this was a plot by Ravi to embarrass him. He faces them to get back the stolen bike and the money.

Set in the city of Chennai, the narrative follows the love story of Yamuna and Vettri, childhood sweethearts. Yamuna works the night shift as a customer service representative at a telecom company, while Vettri is employed at a regular day job. Due to their different work timings, the couple usually rendezvous in the wee hours when the roads are desolate and the city is still asleep. One such night, Yamuna (Shruthi) is abducted by sex traffickers while returning from work and her disappearance sets in motion a desperate mission by Vettri (Dhruvah, debut) to save her. The kidnappers run an underground network with international thugs who earn millions by exploiting their human cargo. Trapped along with Yamuna, are three other girls who have also been tricked and captured to be sold to the highest bidder. Desperate and terrified, the girls have only each other for support in this ordeal, till they reach their destination.

Officer Muthukumar fights against a dreaded don Gurumurthy, but soon he gets embroiled in a brawl with the corrupt system, following the death of Gurumurthy.

When the titular antagonist of an action game takes on physical form, it’s only the game’s less powerful protagonist who can save his creator’s family.

Avinash (Akhil Akkineni) in his childhood meets a girl (Kalyani Priyadarshan as Junnu) and believes that she is his soulmate, and patiently waits to come across her even after growing into an adult. Will they meet again?

Aegan’s story is based around Shiva (Ajith Kumar), a CB-CID officer, and his efforts to foil the terrorist John Chinnappa (Suman). Shiva is simultaneously attempting to mend relations with his father’s estranged first wife and his half-brother Narain (Navdeep). Complications ensue.
John is a scientist who had created tablets by operating on human guinea pigs. His ploys have always been controversial but inconclusive due to lack of witnesses. However, an ex-gang member General Ram Prasad (Devan) became a police approver and is on the verge of revealing John’s ploys to the police. However, he is on the run to avoid charges. The case falls to Commissioner Karthikeyan (Nassar), Shiva’s father, who assigns his son to go and help solve the mission.