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 (Jayaram) is a successful architect married to Maya (Padmapriya) with a daughter named Anakha(pet name Anu). Roy decides to take his family on a vacation to Singapore, but Anu insists that they first go to Roy's old home. They agree to go there first, stay for 4 days, and then go to Singapore. But upon arriving at the old house, Anu starts behaving strangely and soon Roy and Maya understand that she is infected by the ghost of their unborn child Shivani, who was aborted. It was at this house both that Maya conceived Shivani and that they decided to abort the pregnancy. Shivani tells them that she is envious of the love that Roy and Maya are giving Anu, and that she will kill Anu as revenge. Roy and Maya try to escape in vain. Roy calls his friend Raveendran to his house. They all anxiously pray and wait until the time when Shivani said she would kill Anu. By that time, Shivani has changed her mind, after seeing the parents' love for Anu, and spares her life.
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.
Kalyan is a kind of guy who prefers a life full of thrills than leading a regular life style. He seeks kick in whatever he does. He finds liking in Naina. They separate due to differences. Krishna is a young cop who is in lookout for a big ticket thief who happens to be Kalyan. Meanwhile, Naina agrees for an engagement with Krishna. The rest of the story is all about how Kalyan wins back his lady love and the real intent behind the robberies of Kalyan.
Keshu or Keshav Menon (Jayasurya) is a school dropout and a good-for-nothing sort. He is an introvert by nature, works in a photostat shop for living and stays with his mother in modest surroundings. One fine day, he makes a counterfeit note and it leads him to a shady antique shop owner, Danny Sayippu (Mukesh). At the insistence of Danny, he starts making more fake currency and soon, his life goes from bad to worse.
Mohanlal plays the role of OMR, an affluent NRI who does oil business in Singapore. The movie begins on a new year before when the "Red Chilles", an all-girls music band with nine members, are involved in an accident. The girls flee from the place to leave their car behind. Moreover, the girls work for OMR and it was his car they drove around. OMR is forced to come down to India. As a mystery, several other characters come into light, including a party secretary portrayed by Thilakan and four policemen played by Siddique, Vijayaraghavan, Biju Menon and Ganesh Kumar.
Daya (Jagapati Babu) is a sincere cop and an encounter specialist. He handles his job professionally and does not hold anything personal. Salim (Kota Prasad) is his assistant who is greedy about increasing the encounters count so that he could get more publicity from the media. The city commissioner (Kota) is retired and a new commissioner takes the charge. The new commissioner has his own agenda and he discourages Daya from performing his duty in fair manner. The rest of the story is all about how Daya takes law into his hands and cleans up the mafia gang in his own indomitable style.
A man suffering from anterograde amnesia as a result of a violent attack in the past sets out to avenge his girlfriend's death with the aid of photographs, notes and tattoos all over his body.
A lawyer, who defends criminals, wages vigilante justice against them in private. The movie deals with the murder of a girl who was ragged and brutally murdered by her classmates. The lawyer, through his own investigation arrives at the fact that she was brutally raped by college authorities and framed the students as culprits.
Raksha, a young girl gets possessed by black magic. Her father desperate, takes help from doctors and psychiatrists, but nothing helps. Finally, a tantrik comes to the rescue and evil fails to God.
Hari and Ram, conjoined twins separated at birth, grow up separately when their parents part ways. Hari becomes a sincere cop while the mentally unstable Ram becomes a violent man who would barely hesitate to kill anyone considering themselves smarter than him.
Vijay (Gopichand) comes to Kolkata in search of his lost sister (Poonam Kaur). In a series of events he ends up getting caught in a brawl with some goons and in self defence chops a man's arm off. He meets a bubbly college girl Swetha (Anushka Shetty) and soon, they fall in love. One day, the gangster's son named Ajay finds out that Vijay is alive and he swears to avenge his father's lost arm.