The story is about Urvil Raisingh and Celina who meet at an event and a memorable night later. Returning back home they continue with their lives. The memories of Celina haunt Urvil. What happens next forms the crux of the unfolding drama. One Night Stand explores the hypocritical world we live in. What is it that Urvil wants?

The movie starts in 1970s, where there is heavy drought in southern districts of Tamil Nadu. Ayyadurai (Sarath Kumar) and Maadasaamy (Napoleon) are close friends and landlords of different castes in Tenkasi town in Tirunelveli district, and they try hard to help people and save them from dying during the drought. Local MLA (OAK Sundar), also a relative of Madasami, smuggles rice given by the government and people protest, knowing about this. The MLA denies knowing anything about the sanctioned rice. That night, he starts to smuggle the rice, but the lorries are waylaid and ransacked by the people led by Madasamy. The MLA comes there and starts shooting towards people’s legs. Ayyadurai sees the MLA aiming for Madasamy’s head and pushes him. Then Ayyadurai beats the MLA using hilt of the gun, following which he dies. But the local people support Ayyadurai and save him from police and also urge him to contest in the assembly by-elections.

He makes several bids to obtain employment but all goes in vain due to his poor language skills and inadequate educational qualifications. All his friends settle in life, but he continues to struggle in finding employment. Vasu has two faithful friends in Cheenu (Karthik Kumar), and Ganesh (Karunaas). His father (Raghuvaran), who is a teacher, is always critical of him for being an irresponsible person. This just added to his list of woes. At this juncture, Vasu catches a glimpse of a woman named Keerthi (Nayanthara), and immediately falls in love with her. He learns that she works for a software solutions firm. Luckily for him, Vasu finally secures employment in the same firm. Keerthi eventually turns out to be a short-tempered young woman. On a business trip, Vasu accompanies her along with two other colleagues (Jeeva and Manobala), to Australia. Here he reveals his feelings of love to her. She immediately turns him down, saying that she comes from an orthodox family, and her marriage has already been arranged with her uncle’s son. A depressed Vasu returns to India thereafter. Unable to see his son in depression, his father decides to meet Keerti. She abuses him for recommending his son’s love, and accidentally slaps both Vasu and his father. Later that night, Vasu’s father dies of a heart attack. In order to help change Vasu’s mood, Cheenu manages to persuade him to come along to his family house in the country. Coincidentally, on the train journey, Keerthi is revealed to be the fiancee of Cheenu. However, their grandfather’s (K. Viswanath) thoughts of getting them married earlier are put aside because Cheenu and Keerthi leave the house to have their own identity. This causes heartburn to their grandfather. With the passing of a few days, the parents of Keerthi and Cheenu decide to get them married to appease their grandfather. After several turns of events, Keerthi realizes that she is in love with Vasu instead. When Vasu asks her to forget him, during a midnight meeting, because he believes that it would create problems in their happy family, Cheenu himself overhears their conversation. During the wedding, Cheenu tries to force Vasu and Keerthi to confess their relationship to everyone who is present. But when they hesitate to do so, Cheenu stops the marriage himself, by lying to his elders that he has a secret wife in Chennai. When Cheenu comes under fire from his relatives, Vasu tells them the truth, and is driven out of the house. He is joined only by the grandma of the house, who agrees to accompany him as she reminds Vasu of his late father. In time, the rest of Cheenu and Keerthi’s family comes to stay with Vasu for a few days. But Cheenu’s grandfather refuses to enter the house, telling Vasu he is still angry with him, and needs time to change himself somehow. The movie ends when Vasu and Keerthi became a happy couple and live together happily.

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.

Asha, a young woman belonging to a middle-class family, tries to change the arrogant and rich Arjun into a responsible person.

An ordinary college student falls in love with an actress and marries her, but things start to change bitter in their life.

After the death of Ashwin’s father, Vishwanath helps Ashwin join the police force. When Anitha, Vishwanath’s daughter, falls in love with Ashwin, she compels him to elope with her.

A happy-go-lucky youngster’s approach towards romance changes after he becomes close with three women in different phases of his life.

Raja, an introvert medical student falls in love with his fellow college mate, Geeta, but does not have courage to express his love to her. When he decides to convey his love, then he misunderstands that Geeta is in love with someone else but in fact she was helping her sister and her lover to unite. Her father does not accept her sister’s love and the pair commit suicide.
Towards the end of the final year of college, he finally conveys his love to Geetha when she is in the college mourning her sister’s death. On the last day of college, Raja comes to know that the Geetha is about to be engaged soon to someone else, he couldn’t cope with the news and suffers a mild heart stroke and gets hospitalized. In the mean time Geetha starts falling in love with Raja, she visits the hospital to express her love only to find Raja has left to catch a train to his native village. She rushes to the railway station and searches for him, she finds her father on the way and her father accepts her love, she finds Raja’s friend Chinni instead and will come to know of Raja’s heart condition that he cannot digest a very happy or sad news. Chinni urges Geetha not to meet Raja then and promises after Raja recuperates, he will unite them. The film ends as Geetha looks at the departing train.

Mridula and Arun are a young couple, who meet accidentally, and fall in love with each other. Both come from wealthy families, and are reluctant to get married unless they find out if they are suitable for each other on a long-term basis. So they decide to live together for one year. During this process, Arun tragically passes away, leaving Mridula devastated. Time goes by and Mridula is unable to get Arun out of her mind, and keeps on seeing him everywhere. Her family feel that if she re-locates abroad, meets new people, which may assist her to heal. So she re-located to Britain. Once there, she meets with a young man, Manu, who is attentive and attracted to her. Mridula appears to be recovering, and informs her parents as such, and even agrees to marry Mano. Then the next day, her parents are shocked to see that Mridula has changed her mind about marrying Mano, and runs away from home. When she returns home, they find that she has relapsed and has begun to see Arun all over again.

Parents of first cousins, Sujatha and Raghu, decide that they will get the children married to each other on becoming adults. But Raghu becomes a troublesome character as he grows up.

The film is a rom-com which explores the life of a young paperboy.