The story revolves teen romance between students, which is dismissed as infatuation by their respective parents. Then, in a turn of events, the girl achieves her dream of becoming a doctor. The boy was a loser. They are meeting again after many years. The boy turned his failure into success without knowing that the same girl helped him to achieve in his career.

Prabhakar (Jiiva) is a Tamil teacher in a private school in west Mambalam area of Chennai, who leads a lonely life in a lodge. He is frustrated and even tries to commit suicide, in a system where knowing your mother tongue and teaching it is looked down upon by a society craving for material benefits and imbalance in pay structure.
The narration is mostly in a series of flashbacks. Prabhakar, for no fault of his, is at the receiving end, terrorized by cops and on the run after killing a railway booking clerk in a fit of rage. He roams all around the country and joins some saadhus, high on pot and also grows his hair long and keeps a shaggy beard. Finally he wants to exorcise the devils within and at gun point kidnaps a television anchor Yuvaan-Suang(Karunas), who records his life story, where he confesses to killing 22 people in cold blood.

Karthik (Dushyanth) is a rich spoiled brat from Mumbai, who likes to spend time drinking alcohol in pubs and going night-clubbing. His father Mohanram (Bhanu Chander), tired of seeing his son drunk every night, forces him to enrol in a medical college in Coimbatore. In Coimbatore, far from changing his behaviour, Karthik rags the college students. Then he meets four of his classmates : Pandi (S. R. Prakash), Babu (Sathish), Vasu (Ranjan) and Moses (V. Sankar) who come from middle-class families. The four think that they are now friends with Karthik but he makes sure that they are not friends, the haughty Karthik even makes fun of their looks and social status.

A husband tries to save his family from mysterious occurrences that are happening around them

A gang of notorious criminals go about looting houses, raping and murdering women. Chalapathi, a brave and brilliant police officer, sets out to capture the gang and bring them to justice.

Dr. Kanimozhi[2](Sunitha Verma) is drawn to Pottalam Ravi (Kalanjiyam) because of his life-saving act and ultimately decides to marry him. She overlooks Ravi’s brutal past life, during when he had murdered many, including Sengudi (Asmitha), who was with him right from their childhood days. She loves him, but he appears quite satisfied by using her whenever he is driven by his sexual urge. Believing that she could change him for the better, Kani marries him after his return from prison after a jail term. Ravi looks like a changed man after emerging from jail and tells his wife that the talks that he had with some religious people made him a complete man. However, his real self comes out when he hears about Kani’s good-looking patient Amudhanila Gunasekharan (Anjali) and her “inability” to give birth to a child. Ravi’s evil mind springs back to life as his urge to have sex with Amudha increases. He gets close to her, pretending to be the doctor’s assistant. Ravi almost succeeds in making Amudha believe that he had the “solution” to “cure” her problem. How Amudha is saved and how Kani treats her sex-maniac husband is what the script is all about.

The movie showcases the incidents that take place within four days of Joshi, a mobile shop owner, purchasing a new car owing to a marriage alliance that is almost fixed with a girl called Radha.

Mahesh stays with his brother and his sister-in-law. He falls in love with his colleague, Shalu. Initially, she is not interested but accepts his love later. Gokul is a police officer, who is waiting to avenge Mahesh’s brother for his personal loss. Mahesh-Shalu’s engagement gets fixed, but suddenly Mahesh’s sister-in-law gets murdered. What happens from there is the rest of the movie.

Ram is introduced to be an youngster who loves graffiti and doesn’t believe in everlasting love. He has gone through 9 loves in his life, and thinks that love between two people eventually dies out. As a person with strong morals, he is honest and wants to love life and live with open mind, open thought and open action with his lover. Jaanu (Genelia D’Souza) studies in the same college as Ram. He falls in love with her at first sight and goes onto wooing her. She eventually ends up falling for him, but wants him to promise to love her forever. Ram, of course, nonchalantly dismisses this and explains how he cannot love her forever. This leads to a clash of their ideologies. Ram shows Jaanu how even true love stales after a while and true love cannot stay forever, while Jaanu shows him examples of everlasting love, like her friends and her parents. However he makes it clear that love between two people is never the same as it first is. Ram doesn’t really bother about feelings of Jaanu and assumes that things work out for him with her because of how he feels for her without genuinely caring about how she feels and wants her future. Ram shows narcissism in most parts of the story.

The story revolves around a mother-son relationship set in Kodaikanal. The movie commences with Rama Krishna (Jiiva) and his mother Saradha (Saranya Ponvannan), a school teacher, lying in a pool of blood. The police finds that Raam is still alive and arrests him on charges of murdering his mother. Police Inspector Umar (Rahman) works on the case. The story is narrated in a flashback. Raam is a mentally affected teenager (later diagnosed as autistic) living dependent on his mother. His overcompulsive adoration for her lands her in various problems. Raam is provoked easily and tolerates little wrongdoing around him. Next door lives Karthikayeni (Gajala), the daughter of a Sub-Inspector Malaichamy (Murali). She falls for Raam, but upon telling him how she feels, gets a blunt response from him. One day, Saradha is found brutally murdered. Umar grills each and every person connected to her and Raam. Every possible motive Raam might have for murdering his mother is explored. Raam’s neighbors, Malaichamy, and his children are summoned by Umar for interrogation. The police eventually find out that it was Karthika’s brother Satish (Kunal Shah) who committed the murder, fearing Saradha would tell his parents about his drug addiction. When Umar confronts Satish and forces him to surrender, Satish fatally wounds him and escapes, injuring his father in the process. On finding her brother’s hideout, Karthika tries to plead with him to surrender, but he refuses to do so and ties her up. Raam, seeking vengeance, finds the hideout. A brutal fight occurs between the two, and Raam kills Satish. The film ends as the police find the hideout while Raam is meditating on a dilapidated roof.

Guna (Karthikeya) is a happy-go-lucky guy who believes the solution to solving issues is not through violence but through compromise. But what happens when he’s forced to the extremes by someone close to him?

The film opens with Arasu (Sarath Kumar) murdering a person in Mumbai. Later the story shifts to Kumbakonam where he is an assistant to a temple priest (Delhi Ganesh). Soon the priest’s daughter Meera (Simran) falls in love with Arasu. At the stroke of interval Arasu sheds his mask and murders a rowdy who is out from jail and this shocks everybody. Then in a flashback he tells that his father (Sarath Kumar) believes in taking law into his hands and his wife Sivagami (Roja) will be support with him and so had lot of enemies. When he confronts a bad guy (Sai Kumar) and humiliates him, the villains later kills Arasu’s father along with his wife . The rest of the story is how Arasu takes revenge for killing his parents .