The movie deals with love, betrayal, and crime. A young man falls in love with a girl but her father disagrees. He finds a friend whose actions affect his peaceful life. Meanwhile, some crimes happen which get interconnected.

Thiru, a financial analyst swiftly climbs up the corporate ladder. He soon finds his world turned upside down and is set for a collision with a mysterious deadly group headed by a brutal killer.

One morning in his house, Saravanan receives his ex-girlfriend Meera’s wedding invitation. He and his friend Paarthasarathy aka Paartha leave for Pondicherry to attend the wedding via car. En route, Saravanan recollects his past: He was a ruthless youth working in a film theatre with Paartha. He lives with his parents; his father, Varadharajan, who is educated and works as a college professor and his mother, Shenbagam, who is uneducated and is trying to pass an exam, just to get her college degree. One day in traffic, he sees Meera, a girl training to be an air hostess and falls for her on site. He follows her to a cloth shop and also to her Air Hostess class. He saw her house and he and Partha go to her house, as Meera calls them. There, Meera threatens Saravanan by showing her father’s photo, who is a Deputy Commissioner of Police (DCP), Mahendra Kumar. But still, Saravanan follows her and asks her to love him. Meera takes him to Mahendra Kumar’s office and he asks Saravanan to stop following Meera. Meera tells Saravanan that she has some qualifications required by her lover like shaving regularly, dressing well, breaking his friendship with Paartha, coming on time, etc. Saravanan tells this to Partha and Partha asks him if he or Meera is best for him. Saravanan tells him Meera is more important to him than Paartha, causing a break between Saravanan’s and Paartha’s friendship.
Later, Saravanan joins Paartha’s broken love and asks him to rejoin his love. Partha agrees and then they go to Mumbai, following Meera in a flight. There, Meera alas tells him that she loves Saravanan. After some months, Meera calls Saravanan once, but he does not pick up the phone and tells Paartha that Meera is not his real love and it is all nothing, but a drama. But, he really said that for fun. But, Paartha had accidentally switched on the phone while Saravanan told him all this. Meera, mistaking him for intentionally misusing her, comes there and breaks their love. Now, at Pondicherry, during Meera’s marriage, both Saravanan and Partha end up drunk and tell a small story, in a comical way describing the broken love of Saravanan and Meera. Just as the marriage is going to happen, Rajini Murugan, a local don, comes there with a pregnant girl and his girlfriend and reveals that Meera’s groom has a girlfriend, who is pregnant by him and that the girl Rajini Murugan is with, is that girl. The groom admits to his mistake and reunites with his old girlfriend. Saravanan and Paartha walk off the marriage hall, just then Meera comes and hugs Saravanan, hence reuniting with him.

A lawyer who wants to make it big in career to get the nod of his ‘to-be’ father-in-law fails repeatedly before opportunity presents itself in the form of a sensational land cruiser Hit-and-run case shrouded with mysteries. He takes on the best lawyer in town filing a PIL to re-open the case, trades blows and he discovers his true self in the process.

Chotta (Daniel Balaji) is a terrorist, known for bombing various places in the past. He is currently jailed in a prison in Uttar Pradhesh, India. He escapes the jail by planting a bomb there and moves to various cities across India, while planting bombs everywhere, killing many people. His next target is Chennai and he heads towards the city to complete his mission. He often takes lifts from various vehicles across the highway. He communicates with his associates using a Gmail account, by composing his messages, saving them as drafts and providing the login details to his associates, who login later and delete the drafts meant for them after reading. Thus, their IP addresses remains untraced. The police issue a red-alert across the country and issue an order to arrest Chotta, all over India. His photo is faxed to all the police stations, who begin their search.

Set in a small village in rural Tamil Nadu, Kanne Kalaimane follows the life and times of a rich farmer named Kamala Kannan, and chronicles the changes in this world following the arrival of Bharathi, a newly appointed bank manager in the village.

Kathir, who hates marriage, comes to Coimbatore to resolve a family dispute. There, he falls for Pavithra, a neighborhood girl. But, his dream shatters when he finds that she loves her friend.

Saravanan (Udhayanidhi Stalin) is a jobless youth who roams around in a two-wheeler with his friends. Kalyanam (Soori), his uncle, aspires for a political career, but due to the error committed by a drunk photographer, Saravanan ends up as the local head of a national party, and this upsets Kalyanam, who is left with no option but to leave the country to take up a job in Dubai. His other uncle’s daughter Thaenmozhi (Regina Cassandra) returns to town after many years, and Saravanan is besotted by her and falls in love with her. In the meantime, Kalyanam returns and awaits an opportunity to teach a lesson to Saravanan. Whether Saravanan succeeds in his love and whether Kalyanam manages to put Saravanan in his place is told in the rest of the story.

Sathya is an unemployed youth from Thanjavur] who goes to Trichy every month to meet his old childhood friend Sivakozhundhu, who is a hotel manager and spend his day with the latter’s salary. One such time, he meets Ramya, a bank manager, and falls in love with her. He believes that if he sees a girl three times a day casually, she will be her lucky lady. He meets Ramya twice and goes all over Trichy with Sivakozhundhu in search of her. He decides to stay there that night. Just before 12:00, he sees Ramya celebrating her birthday in the hostel opposite to Sivakozhundhu’s room. The next day, he proposes to her in her bank.
Meanwhile, Sivakozhundhu decides to send Sathya off by all means. Sathya is in turn appointed as Sivakozhundhu’s assistant in a 2.5 star hotel, where Sivakozhundhu worked as a manager earlier. To improve their hotel’s condition, he asks for a loan from Ramya’s bank and uses it. The hotel is developed. One day, Sathya and Ramya are chased by thugs, who are the henchmen of a lady whom Ramya chucked out of the hostel as she had stolen other’s valuables. Sathya saves Ramya from the thugs. The next day, Ramya tells him that she had once committed a murder and has gone to prison for the offense. This frightens Sathya, but Ramya says that once in Chennai, she was chased by a dog, whose owner is her former boss. She kicks the dog and it dies, but the Blue Cross members see this and take Ramya to court, where she is imprisoned for 10 days and fined Rs.5000 for killing the dog. Sathya laughs at this. Ramya is hurt and asks him to get out of the station or else she would go out of town. That night, Sathya and Sivakozhundhu decide to commit a crime and go to prison so that they could understand the pain of being in prison. They get heavily drunk and beat up “Scorpio” Shankar, a local don.

Udhay plays an affectionate son, who looks to stay away from trouble, while Sathyaraj, who believes in questioning injustice, plays Udhay’s dad in this film. It is about how a father-son duo gets trapped in a situation and how they get out of it.Amy plays the role of a bubbly Brahmin college girl in the film and Chachu plays her grandmother in it, while Vikranth playing the villain.

Based on the Buddhist tale of Angulimala, a dreaded serial killer, Psycho tells the story of a blind man who gets involved in a murder mystery.