The story of two friends, Anand and Ashok, story revolving around them on their love, sports, family bondings.

Life altering sins of the past revisit modern day lost souls in a small town…40 years later.

Chitra (Nayantara), a medical student and her friends are working on a project about the human brain. She wants to investigate the curious case of Sanjay Ramaswamy (Suriya), a (former) notable Chennai based businessman, who is reported to have anterograde amnesia. Her professor denies access to Sanjay’s records as it is currently under criminal investigation. Chitra, nonetheless, decides to investigate the matter herself.
Sanjay is introduced as he brutally murders a man. He takes an instant picture of the man, and writes on it “done”. Sanjay has anterograde amnesia; he loses his memory every 15 minutes. Sanjay uses a system of photographs, notes, and tattoos on his body to recover his memory after each cycle.

Chumbak is a coming-of-age story of Baalu, a teen restaurant worker boy who decides to con someone to fulfill his dream and escape his wretched life, but instead finds a mentally-ill village dim-wit – Prasanna (Swanand Kirkire) as his only victim. Baalu now finds himself torn between his morality and dreams, as the two find themselves on a journey that changes their lives.

The story is woven around a mobile phone, which Thankar says connects people by voice and helps to have new relationships and maintain them. A mother has nine children, but she lives in a situation, which separates her from the children. The only way she could be in touch with them and hear their voices is a mobile phone. She regards her mobile phone as the representative of her children and has become possessive of it. Her last son is Shanthanoo and his lover is Iniya. The film also registers the strong bonding between the mother and her last son.

A detective pushed beyond his limits will stop at nothing for vengeance. When his wife is killed by a criminal that he put away, Mason, a hard-nosed detective, deliberately gets arrested in…

The story revolves around an ego clash between father and son. Puli (Sundar C) is a local rowdy and the son of a math teacher Vedhukannu (Prakash Raj). Vedhukannu hates his son for being a rowdy and not being proficient in math. As part of a flashback, it is shown that young Puli was very good in physics, but his father, being a math teacher, wanted him to excel in math, which he was unable to do. As a result of repeated physical and mental abuse, Puli takes the wrong route to grow up. In the meantime, rival gangs and police try to kill him, but he is accidentally saved by his half-sister, a daughter from an affair his father had. Puli helps his half-sister in return for her unexpected help and vouches for her safety. The rival gangs kill her and put the blame on his father. How Puli brings the truth to light and unites with his family completes the rest of the movie.

The story goes around the three friends who start a business, also providing coaching classes and tuition. Omi asks for help with his uncle, who is also a political leader, to start this business. Govind provides tuition classes to some children and Ishaan gives cricket coaching. They come to meet a boy, Ali who is gifted with hyper-reflex. Ishaan then starts special coaching for the boy so that the country gets a new star player. But unexpected things happen suddenly and the story takes a turn.

Dhinakar (Jai Akash), hailing from a middle-class family, and Nancy (Madhumitha), a software engineer and sole breadwinner for her family, are neighbors who are in love with each other. However, their dreams of getting married are shattered when their self-centered parents decide on proposals of their own choice. Notwithstanding the overbearing parental pressures, Nancy marries Victor (Prakash Raj), a multimillionaire businessman, while Dhinakar marries his cousin – but not before the lead pair enters into a sly pact. Dhinakar and Nancy contrive to marry the spouses chosen by their parents, only to officially dissolve their unhappy unions later and thereby pave way to their union. After a sequence of events, Nancy successfully convinces Victor about her unreserved enthusiasm for her past love, gets her divorce, and takes the first step towards making a fresh start, but events overtake her in an unexpected final act.

Ramanaa begins with the abduction of fifteen District collectors. After three days in captivity, fourteen officers are released, but one is murdered. The police find a tape recording and a file on the dead officer’s body that provide significant evidence concerning the kidnapping and subsequent murder. The file suggests that the crimes were committed by members of the self-proclaimed “Anti-Corruption Force” (A.C.F.), a citizen militia seeking to eliminate corruption through vigilante acts. The militia, acting as a kangaroo court, “sentenced” corrupt officials in the area to death, beginning with the captured revenue officers who were apparently engaging in criminal activity.

A man who is separated from his family as a child is replaced by an interloper.

Siva (R. Madhavan) is based out of Srirangam and he comes to Chennai to join a college. He stays with his sister (Anu Hasan) and her husband (Raghuvaran). Siva does not like his brother-in-law and never talks to him, despite several attempts made by his sister to convince both.
Siva meets Priya (Meera Jasmine) during a bus journey, and it is love at first sight for him. He again meets her on a few more occasions and proposes his love, but she warns him to stop following her despite liking him. Siva understands that Priya’s brother Bhaskar (Atul Kulkarni) is a local goon, and he attacks anyone who follows his sister.