Parvathi (Latha) is a rich and arrogant woman who leads her life with her three sons – Kandha (Prabhu), Kadamba (S.Ve. Sekar) and Kathirvela (Vivek). The sons are very obedient towards their mother and they run a restaurant in Chennai. Parvathi also had a daughter (Bhuvaneshwari) who married Vadivelan (Vadivelu), a barber following which Parvathi disowns her daughter. Vadivelan decides to teach a lesson for Parvathi. He understands that Parvathi’s sons are in love with girls from economically backward community and sets a plan to get them married against Parvathi’s wishes. Kandha is married to Rubini (Roja), Kadamba to Ragini (Kovai Sarala) and Kathir to Rohini (Nirosha).

Three men and their accidental meeting on Napier Bridge will change their lives forever.

The worst nightmare of the criminal class, encounter specialist Birla Bose has eliminated over 30 wanted criminals so far. His next assignment takes him to the holy city of Rameshwaram, where the greatest challenge of his career awaits Bose.

Govindan (Manivannan) is a thief who has two children. Aadhi (Pasupathy) and Mathi (‘Chiyaan’ Vikram). Years go by and the two, Aadhi and Madhi, decide to stop stealing and mend their ways and lead a hardworking life along with their father. They migrate to neighboring village and meet a retired agricultural officer, Chidambaram (Vijaya Kumar) who is in deep debts and is under pressure from the village’s landlord, Kalingarayar (Murali) to clear his debts. In efforts to help Chidambaran, Mathi confronts Seetha Lakshmi (Asin), Kalingarayar’s daughter, who comes to collect the money Chidambaram owes her father. Seetha Lakshmi starts to acquire a liking for Mathi but keeps it hidden due to her father’s atrocious temper. In an attempt to teach Kalingarayar a lesson, Mathi forcibly ties the mangalsutram around Seetha’s neck. Kalingarayar, realizing his daughter’s love for Mathi, comes down to arrange a grand re-marriage between the two. But things go awry when Manicka Vel (Biju Menon), Seetha Lakshmi’s maternal uncle comes to town in an effort to stop the wedding between the two as he has plans of marrying her and wiping her family fortune.

The film starts with a flashback. ACP Bose (Karthik) is a sincere police officer happily married. He lives with his parents and younger brother Velu (Arun Vijay). Velu is a college student, and he falls in love with his classmate Anjali (Dhansika). Enters Umapathi (Chandrasekar), the villain who is notorious for settlements and land deals. Anjali comes across Bose when she is on a field trip from her college with her friends. She gets friendly with his daughter Pinky, who tells her that she would get her introduced to her uncle Velu, and they would make a good pair. It turns out that Velu studies in Anjali’s college and soon after, they come to know each other and get close.
Bose investigate the case of Umapathi, whom no one has been able to touch. He is even involved with a land deal involving crores of money which is completely illegal and others including the DIG is involved. When the chairman of the bank who has lent money for the deal demands the money back as the deal has not worked, Umapathi eliminates him.

Ajith is Red (it stands for Revolution, Education, Development), an orphan who has since grown up to be the local don in Madurai. Naturally he possesses a heart of gold and when not bashing up bad guys, he spends his time forcing schools to accept students without donations and taking care of orphans. Cheeni (Salim Ghouse) is his biggest enemy. Red falls for Gayatri (Priya Gill), the daughter of his friend and confidante Narayanan (Manivannan) and helps her without her knowledge. She too likes him but wants him to give up his life of violence. Meanwhile, a reporter (Rajesh) for Ananda Vikatan begins to serialise Red’s story under the name Aadi and it becomes quite the rage among readers

Ajay, who has an uncontrollable temper, loves Sonia. Soon enough, Sriram, Sonia’s father, puts forth a condition that Ajay can only marry Sonia if he can control his anger for three months.

The story is set in a rural area around Madurai, in the village called Paruthiyur, which still practices caste segregation as a result of the controversial Criminal Tribes Act imposed by the British colonists, where members of impoverished communities are stereotyped as generational criminals.
Paruthiveeran (Karthi) is a country brash whose inter-caste parents were ostracized by the villagers since his higher caste father married his lower caste mother. After his parents’ death, Paruthiveeran was mostly raised by his doting paternal uncle Chevvaazhai (Saravanan) who pampers and accompanies him in every misbehavior to keep him happy. Having grown up among his mother’s people, he is often arrested for petty crimes. His one ambition in life is to gain enough notoriety to be on TV news and to be thrown into Madras Jail. He often bullies Paruthiyur villagers for money and fun.

The movie begins with Jeeva (Sketch) narrating his story. His uncle used to tow and bring back vehicles for which the monthly EMI had not been paid. However, during a fight, he loses his hand, and Sketch gets the job. Sketch does his day-to-day job perfectly. His uncle’s right-hand Ravi wanted to take over the business. However, Bhaskar Settu (Boss) agrees with Sketch coming up to the position. One day at a college, Sketch tows a scooter that belonged to Manju, Ammu’s friend. Another day, he happens to meet her on a bus. When some other guy tries to touch her, Sketch bats away his hand. At the same time, the bus stops quickly, causing Sketch to bump into Ammu. She mistakes this as him trying to make advances on her and yells at him. Only later does she realize he was trying to protect her, and she falls in love with him. One day, Sketch loses a bike while bringing it back to the garage. The owner gets angry and demands 2 lakhs from Settu. Sketch realizes this was a plot by Ravi to embarrass him. He faces them to get back the stolen bike and the money.

Vedi tells the story of Prabhakaran (Vishal), a young police officer who goes to Kolkata in search of his sister Aishwarya (Poonam Kaur). Prabhakaran, at his native place Thoothukudi, had developed enmity with a local don Easwaramoorthy (Sayaji Shinde) by thrashing him in public and putting him behind bars. The enmity gets travelled to Kolkata where Easwaramoorthy joins another local gangster to take revenge on Prabhakaran. The baddies trouble Aishwarya and her friend Paaru (Sameera Reddy), who falls in love with Prabhakaran. While the enmity between Prabhakaran and Easwaramoorthy continues, a flashback of Prabhakaran goes on. Prabhakaran and Aishwarya were treated by the society as their father was a smuggler. Prabhakaran decides to send Aishwarya to an orphanage saying that he doesn not know who she is. This creates a bad name about Prabhakaran in Aishwarya’s books. Later, Aishwarya gets adopted by a North-Indian family and settles in Kolkata. After a few years, Aishwarya’s foster parents die of an accident, and she is sent to an orphanage again. Therefore, Prabhakaran goes to Kolkata and masquerades himself as Balu, a physical trainer in a college as he is scared that Aishwarya might avoid him. How Prabhakaran defeats the baddies and joins with Aishwarya is the action-packed climax of the movie.

A 14-year-old forlorn Kalyani delivers a boy in seclusion, fearing societal backlash and incapacity. She abandons him, heavy-hearted, placing him inside a moving goods train, which a slum dweller finds. The slum procures him as their common child, naming him Surya and they collectively raise him honest. He grows up, intolerant of injustice especially to the poor, though he wonders why his biological mother had impetuously abandoned him. A yellow shawl was the only identity he had of his mother, which she had placed him in when casting him away.
Devaraj, a powerful don who is kind yet feared by most in the society, also fights injustice, but by violent means. Ramana, an auxiliary of Devaraj’s, whose abusive demeanour led Surya to attack him, succumbs to his death. Surya gets apprehended for this. An exasperated Devaraj soon perceives Ramana’s felony, realises Surya’s cause was genuine and bails him out. Thus, Surya and Devaraj get to understand each other as both share similar social ideologies despite getting off on the wrong foot. Devaraj declares Surya his “Thalapathi”, a best friend.

Kadhal Vanillae (Tamil: காதல் வனில்லையே) is a Tamil-language Romance film which is Directed by Velu Prabhakaran & performed by Sherlidas and Prithy and Released on 17 July 2009.