Manoranjan (Kamal Haasan) is a leading film star who is immensely popular among his fans; however, he is beset with several personal problems. 25 years back, he had been forced to marry Varalakshmi (Urvashi), the daughter of noted film director Poornachandra Rao (K. Viswanath), despite being in a relationship with a woman named Yamini. He is an alcoholic and his teenage son Manohar (Ashwin) despises him. He has a daughter Manonmani (Parvathy) who was born out of wedlock to Yamini and was raised by Yamini’s husband Jacob Zachariah (Jayaram) after Yamini’s death. She also despises Manoranjan. He has been diagnosed with advanced stage brain cancer and has only a few more months to live, which is unknown to anyone including his own family. He is treated by his family doctor Dr. Arpana (Andrea Jeremiah), with whom he has an extramarital affair.

Three women face challenges in their process of getting married. Rajkumar (Dinesh), who is in love with his colleague Kavya (Nivetha Pethuraj), is reluctant to marry her, owing to her superior economic background, so much so that he delays talks of marriage. Lakshmi (Miya) is visited by several suitors, and every one of them is rejected by her father (Nagineedu), whose greediness makes him wait every time for a suitor who is per the family’s status. Bhaskar (Lingesh) agrees to marry Susheela (Riythvika) but gets cold feet and calls off the marriage. The story unfolds, telling how each of the protagonists attempts to fight the dogma of arranged marriage.

Two ambitious youngsters who make a living through a YouTube channel agree to perform a few tasks for a businessman when the latter offers them huge money.

Sera (Krishna) is a man who earns his living by retrieving dead bodies from Kodaikanal’s Green Valley View suicide point. Nandu (Karunas), Shanmugam (Thambi Ramaiah), and a mute friend are part of Sera’s crew. Sera meets Kavitha (Bindu Madhavi) when he and his crew retrieve her sister’s body from a gully after her sister had committed suicide with her boyfriend. Kavitha falls in love with Sera. A parallel plot is of Ayya (Jayaprakash), who trades in stolen tea, with corrupt officials turning a blind eye to his activities. Iyya’s gang kills 4 police officers during a raid and throws the dead bodies from the suicide point. Ayya, who knows Shanmugam, threatens him not to retrieve the bodies of the police officers. Fearing for their lives, Shanmugam tries to convince Sera not to retrieve the bodies. Brushing aside Shanmugam’s fears, Sera’s crew retrieves the bodies. After retrieving the bodies, Sera informs the police of the murder by Ayya, resulting in Ayya’s arrest. Ayya comes out in bail, and his men kill Shanmugam, Nandu, and Sera’s mute friend. Sera kills Ayya’s henchmen. Kavitha consoles Sera, and they both decide to run away from Kodaikanal to lead a peaceful life. They both board a jeep, and on the way, Ayya arrives with his men, and they start attacking Sera. Sera kills most of them and also Ayya. He rushes back to the jeep but is shocked to see Kavitha dead. Sera understands that Kavitha was accidentally stabbed to death during the fight. Sera cries loud, jumps from the mountain, and kills himself along with Kavitha’s dead body.

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.

Rajini is working as a coolie in a factory. He is asked by three brothers (Nizhalgal Ravi, Radharavi, S. S. Chandran) to act as a foreign-returned rich man, the heir of a property. Rajini acts, but always escapes as he doesn’t want to face consequences. But then he comes to know that he is the heir to the property, his father was killed by three brothers to take away the property and mother (Sujatha) became a mental patient. He avenges the death of his father by killing the villains. At last, he says he doesn’t want to be an heir to money and always remains as a coolie.

Robbers steal money from three brothers who are gangsters and enter a bungalow. The gangsters chase them, and after getting in, they all have to figure out how to come out from the bungalow.

Sunderrajan aka Sura (Shiva) comes to Chennai from Coimbatore on his way to Saudi Arabia. He is received by Marthandam (S. P. B. Charan), a veterinary doctor who is going to marry his sister soon. After the travel agent informs Sura that he cannot taste liquor or women in Saudi, he and Marthandam go to a wine shop to have the last gulp. It is a dry day thanks to elections. Sura is determined to taste the ‘quarter’ and starts his journey to various places in Chennai where he is told that liquor would be available. He goes to a politico who supplies wine for votes, a star hotel, an Anglo-Indian group of youngsters, a fish market, a gambling den, a kulfi shop, and a brothel house, among other places, all in search of ‘quarter’. During his trip, he meets Saraswathi aka Saro (Lekha Washington), who attempts suicide after her parents scold her, and King-Prince, a father-son duo (both roles played by John Vijay) who runs a gambling center. How Sura, in the company of Marthandam and Saro, succeeds in his mission and leaves for Saudi forms the remaining story.

Kannan (Vimal), Ayyavu (Bharani), Rajamani (Gaurav Narayanan), and Mariappan (Nishanth) are four friends who live their lives in their own way in Madurai. They are callous youths who go hammer and tongs to make both ends meet. Kannan, a wedding videographer, comes across his childhood friend Radha (Anjali), who is a compere in a local cable TV channel, and love blossoms. However, one event changes the course of their life. Kannan bashes a youth for taking obscene video clippings of a girl and blackmailing her with ulterior motive. The youth’s father (Kamala theatre owner Raju) finds out the men behind the attack on his son. He hatches a conspiracy and ensures that the friends themselves turn foes for each other. In the meantime, it is time for Kannan to tie the knot with Radha. Did the baddie succeed in his mission is the crux of the story.

The story is set in the 1960s. Veluthambi alias Velu (Vimal) is a graduate aspiring for a government job. His father Annamalai (Bhagyaraj) advises him to work temporarily for a NGO that helps in educating rural children so that he will be given a priority for government job. Velu, although uninterested, joins the NGO and gets appointed as a teacher in a small dry village which lacks basic facilities. The entire village works for a rich landlord JP (Ponvannan), who owns a brick factory. Velu tries to convince the villagers to send their kids to learn, but in vain.
Madhiarasi alias Madhi (Iniya) owns a tea shop in the village and falls in love in Velu. Also the village kids play pranks on Velu, which irritates him. Velu understands that the villagers are exploited by JP, owing to their illiteracy by not paying them properly. Velu tries to make the villagers understand JP’s true colour, but they don’t believe him as they see JP as their savior.
Finally, the villagers understand that they are being cheated, and they demand proper payment for the bricks made by them. They also realize the value of education and send their kids to learn under Velu. Now Velu gets a government job but turns down the offer as he prefers to continue working for the NGO which gives him satisfaction. In a few days, he gets a letter from the NGO stating it is closing down due to financial difficulties. Velu worries as he is jobless and decides to work along with villagers in making bricks. But the villagers come for the rescue and want him to continue as a teacher for their kids, and in turn they agree to pay him. Velu also marries Madhi, and the movie ends with him feeling proud that the villagers understood the value of education.

Gopalakrishnan (Pandiarajan), a clever cook from Coimbatore, moves to an apartment in Chennai. He becomes quickly popular and appreciated among the apartment’s women, however, their husbands get jealous of Gopalakrishnan. Meanwhile, he falls in love with Usha (Kushboo). He decides to marry her with the support of his neighbours. After the marriage, Usha has just learned that Gopalakrishnan was already married. Gopalakrishnan got married with a girl (Sindhu) but she was already pregnant and she eloped with her lover that very evening. Usha is upset and refuses to live with him. Later, Gopalakrishnan finds a forsaken baby (by his ex-wife) in a dustbin and leaves the baby to an orphanage. Gopalakrishnan’s father (Manivannan), an army officer, comes to live with his son and he helps his son to win back Usha’s heart.

A corrupt assistant of an equally corrupt mayor murders his boss and hides the body in a freezer. He finds a look-alike and forces him to pretend to be the mayor. The young man has a different agenda.