Roy Mathew, a young architect is mistaken for "Arjunan", the anonymous eyewitness to a district collector's murder. He teams up with journalist Anjali Menon to find the truth behind the assassination.
Pettaikaaran is famous in his town for an impeccable track record of successes in rooster fights. When one of his aides, Karuppu, goes against his word in a fight, it leads to an enmity between them.
During a routine autopsy, forensic pathologist Martin Revell finds a key in a suicide victim's stomach. His investigation into the seemingly inanimate object leads to a world of obsession, insanity, and homicide.
During the shoot of a film, the hero gets killed under mysterious circumstances. However, IPS Officer Sahasranamam, who is assigned to investigate the case, comes across some startling facts.
Anwar becomes entangled with a terrorist group after personal tragedy leads him down a dark path. As he infiltrates their network, his true motives and loyalties are revealed in a tense battle between faith, vengeance, and redemption.
Indrajith plays the role of a police officer while Mani plays an underworld don. The story progresses as both of them fight each other, for their siblings.
Mammootty and Arjun are tough police officers. They analyse farmers struggle and related social violence to put forward an amicable solution to have lasting harmony. They are highly disturbed by the terrorists' infiltrations. Sneha, an Aviator, is Mammootty's wife and they are sad that they don't have a child. The rest of the story deals with how they counter act against the terrorists and save the land.
Ramesh spends his time flying kites and playing games along with his friends on the streets. However, his life takes a turn for the better when he accidentally meets an aspiring designer, Priya.
Apoorvaragam is the story of three youngsters Roopesh (Nishan), Nancy (Nithya) and Tommy (Asif Ali). Roopesh has always been in love with Nancy, but has never had the nerve to express it. For Nancy, love is something that is beyond words. Tommy is the perfect Cupid, who would make things happen for these two. After a lot of unexpected happenings and dramatic twists, it is proven that only true love can endure.
In order to escape from the loan sharks, Bala takes his wife and son to hide in his ancestral home. However, things turn eerie when he feels the presence of ghosts in the house.
Five people from varied strata of society – a slum dweller who works as a cable operator, a runaway prostitute, a desperate woman drowning in debt, a rising musician, and a grief-stricken Muslim man – end up together in the same hospital, at a time when it is attacked by terrorists.
Gangaram (Gopichand), an orphan raised by M.S. Narayana always craves to be a Police Officer and he becomes one. His intensity, dedication and straight forwardness gains him respect from his seniors and soon he starts running a cell that specializes in killing the gang members of two gangs – Talwar Gang and Khaled Gang. How does this honest police officer try to get on top of these gangs forms the rest of the story.
Viswam murders the people who brutally raped and killed his daughter. Now, he tries to reach out to Soorya Narayanan, a famous lawyer, whom he believes to be the only person capable of saving him.
Roy and Maya lead a happy life with their daughter, Anakha. When they go to their old bungalow for a vacation, Anakha gets possessed by the spirit of an unborn child the couple had aborted earlier.
Shiva gets nostalgic thinking about his college life and friends and looks forward to meeting them all. But, there is a sombre mood at the reunion. Soon, Shiva is found almost strangled to death.
Left by his wife, a jobless youngster joins his school-time friends in carrying out small-time robberies and eventually a bank heist destined to bring chaos.
Parambathu Raju and Kaimal of Parvathipuram village always fight over various issues. When they get involved in the murder of a girl, two police officers are assigned to investigate the case.
Senthil Kumar (Prasanna) and Malini (Sneha) are a happily married couple in New Jersey, living life like any other born-in-India, arrived-in-the-US couple do. He submerges himself in the office and eats sambhar rice at home and she never misses a bhajan at the temple and shops at Indian stores. They have a daughter Rithika (Akshaya Dinesh), 5 years old, the apple of their lives (their car's registration number carries the name of their daughter.) They have just settled down in a new, spacious home about which Malini, understandably, has fears. The couple squabble amicably about everything from her perpetual laundry and cooking; while Senthil argues with friends about the significance of viboothi (holy ash, usually applied on forehead) and takes his family on weekend trips and birthday parties. It is a normal, happy life in the US until Robertson (John Shea) arrives, to paint the basement. Now, things are never the same at home again.
Surya is the son of a local don, and studies at the Chengalpet Matriculation School. His mother who is separated from her criminal husband wants him to grow up as a model citizen. Surya who is attached to his mother gives a promise that he will not take the path to violence again, and is admitted to the up market Lake View School in Ooty, described by its principal as the "Best School in south Asia". Surya is looked down by his snooty seniors led by Rohit and his gang. The only person who stands with him is Babloo, and the principal's daughter Tanya who has a soft corner for him. Under extreme provocation, Surya keeps his cool as he tries to live up to his mother's expectations. However he breaks down after Babloo is murdered, and goes on a revenge spree. The film ends on a tragic note, as the message of the film is conveyed.