Shiva (Prithviraj Sukumaran) is an energetic, enthusiastic college student. Being short-tempered, he gets easily provoked by the rich, proud Vasu (Karthik Kumar) and his sneering attitude. From glares and snarls to punches and fights, Vasu and Shiva do it all, even for unreasonable, petty things. Shakthi (Shakthi Vasudevan) stops their quarrels before they injure each other very badly. As he is friendly, kindhearted and cool-headed, Shakthi tries to bring Shiva and Vasu together on friendly terms, but in vain. Shiva, Shakthi, and their faithful friend Bala (Vishnu Priyan) stay together through thick and thin, and are always ready to voice out their views on behalf of the hostelites in the college. Shakthi’s father (Bhagyaraj) often visits his son in the hostel and is like a father to all of Shakthi’s friends. Meera (Priyamani), the daughter of an MLA, nurtures a soft corner for Shiva. She is brave enough to stand up to him and check him when he throws unnecessary tantrums. Shalini (Anuja Iyer), Meera’s friend, is a shy, reserved Muslim girl from a very strict family background. She is often preoccupied with her own thoughts. Karthik (Lollu Sabha Jeeva) is a total showoff who tries to humiliate Shiva and Shakthi, but ends up making a fool of himself.

A spy movie based in the 1980s National Security Planning.

Sherley (Sarika) is a model who returns to Chennai after a modeling stint abroad. She received by the modeling agency and is soon drugged and operated upon. Her dead body is soon found.
Dileep (Kamal Haasan) is a photographer working for a newspaper run by Lakshmi Narayanan (Thengai Srinivasan). He is a photographer in a beauty pageant run by a rich industrialist, Oberoi (Shamasundar L. Asrani), which was won by Sharadha, Swapna and Radha (Madhavi, Radha and Swapna). He becomes professionally involved with Radha and Swapna while romantically involved with Sharadha. Soon Swapna’s dead body turns up and he becomes the main suspect in the murder investigation and is on the run from police. As his face is plastered in wanted ads all over the city and police are watching Sharadha’s house, he goes to meet Radha.
Radha, who always considered Dileep as her brother as he was always nice to her, helps him and lets him stay in her apartment. The next morning, when Dileep wakes up and turn on the tap, the water is bloody red and he hears screaming coming from the apartment water tank. He goes to investigate when a group of people are gathered around the tank and is shocked to find Radha’s bloody body inside the tank. Soon people recognize him from the wanted ad and mistakenly think that he murdered Radha. He is once again on the run from police for the murders.
He starts to investigate the murders and deduce that the only thing the two girls had in common, apart from him, was the modeling agency. When he secretively meets up with Sharadha, he finds a small incision on her body. Remembering that the other two girls had the same incision, he questions her. Although she doesn’t remember how she got it, she remembers that she didn’t have one before she left on a photo shoot abroad for the agency. She also finds it strange that she was unconscious for a few hours during the shoot but cannot remember what happened.
They eventually find out that Oberoi, has a nefarious business through his modeling agency. He drugs the models during the photo shoot abroad, operates them and smuggles diamonds into India using their bodies. When the models return to India, they again drug the model and take it out and kill the girl.
Dileep gets captured by Oberoi’s goons but with the help of his editor and his girlfriend, he has already got the truth out. Before Oberoi can kill Dileep, they hear the police siren coming towards him. Oberoi, an obsessive diamond collector, rather than get caught and go to prison, eats his own diamonds and commits suicide.

An infectious epidemic spreads through India as an American turbine engineer learns that his pregnant girlfriend is trapped near the slums of Mumbai. Now he must battle his way across a 300mile wasteland of the ravenous undead.

Frederick Salomon, a war photojournalist who became worldwide famous for capturing the image of a girl flying through the air as consequence of an explosion, returns to the country where he took the celebrated picture twenty years before. He is back to receive an award, as many consider him an essential piece in the recent peace efforts in the troubled country. But a local journalist called Hanna doesn’t agree, and wants to kill him for a reason only Salomon knows.

Susi’s family is stalked by a vengeful killer. During an attempt to save Susi from this madman, her boyfriend, Baskar, gets a good look at the attacker’s eyes. Using this as a clue Baskar attempts to find the person haunting Susi’s family.

Chitra (Nayantara), a medical student and her friends are working on a project about the human brain. She wants to investigate the curious case of Sanjay Ramaswamy (Suriya), a (former) notable Chennai based businessman, who is reported to have anterograde amnesia. Her professor denies access to Sanjay’s records as it is currently under criminal investigation. Chitra, nonetheless, decides to investigate the matter herself.
Sanjay is introduced as he brutally murders a man. He takes an instant picture of the man, and writes on it “done”. Sanjay has anterograde amnesia; he loses his memory every 15 minutes. Sanjay uses a system of photographs, notes, and tattoos on his body to recover his memory after each cycle.

Rhythm, leading a happy life and about to have her second child, is traumatized by the nightmares in which she sees an umbrella man harming her lost son. She sets off on a dangerous journey, along with her trained dog, to unravel the secrets behind the nightmares and to protect her loved ones.

James Bond descends into mystery as he tries to stop a mysterious organisation from eliminating a country’s most valuable resource.

A storm rages. A young girl is kidnapped. Her mother teams up with the mysterious woman next door to pursue the kidnapper, a journey that tests their limits and exposes shocking secrets from their pasts.

Annamalai’s photograph appears in a newspaper along with an interview of Maria (Rachana Maurya), who claims herself to be a saint propounding a new faith. She describes him as her God, Vaali. A mafia-turned-spiritualist she attributes her transformation to him in the interview. This prompts three women to come calling Maria all the way.
The three women were cheated by him recently and they probe Maria of Annamalai’s whereabouts. The three women, Sakhi (Sruthi Prakash), Nisha (Swetha Menon) and an actress Deepa (Lakshmi Rai) try to prove Maria that he was a cheat. However she doesn’t believe them.

FBI agent Jennifer Marsh is tasked with hunting down a seemingly untraceable serial killer who posts live videos of his victims on the Internet. As time runs out, the cat and mouse chase becomes more personal.