The story revolves around a mother-son relationship set in Kodaikanal. The movie commences with Rama Krishna (Jiiva) and his mother Saradha (Saranya Ponvannan), a school teacher, lying in a pool of blood. The police finds that Raam is still alive and arrests him on charges of murdering his mother. Police Inspector Umar (Rahman) works on the case. The story is narrated in a flashback. Raam is a mentally affected teenager (later diagnosed as autistic) living dependent on his mother. His overcompulsive adoration for her lands her in various problems. Raam is provoked easily and tolerates little wrongdoing around him. Next door lives Karthikayeni (Gajala), the daughter of a Sub-Inspector Malaichamy (Murali). She falls for Raam, but upon telling him how she feels, gets a blunt response from him. One day, Saradha is found brutally murdered. Umar grills each and every person connected to her and Raam. Every possible motive Raam might have for murdering his mother is explored. Raam’s neighbors, Malaichamy, and his children are summoned by Umar for interrogation. The police eventually find out that it was Karthika’s brother Satish (Kunal Shah) who committed the murder, fearing Saradha would tell his parents about his drug addiction. When Umar confronts Satish and forces him to surrender, Satish fatally wounds him and escapes, injuring his father in the process. On finding her brother’s hideout, Karthika tries to plead with him to surrender, but he refuses to do so and ties her up. Raam, seeking vengeance, finds the hideout. A brutal fight occurs between the two, and Raam kills Satish. The film ends as the police find the hideout while Raam is meditating on a dilapidated roof.

This movie is about a socially awkward college student named Gandhi (Jeevan), who cannot seem to have joyful social interactions with people.

Ezhumalai (Arjun) leads a peaceful life as a dance master in the village. Anjali (Gajala) falls in love with him before learning he has a son and his wife Lakshmi (Simran) is dead. She wishes to marry him but faces competition from Lakshmi’s sister Sandhya (Mumtaj), who also wishes to wed him. Anjali is the daughter of Nagalingam (Ashish Vidyarthi), who is from a neighboring village. When she reveals this fact to Ezhumalai, she learns he and her father are sworn enemies, and her father killed Lakshmi.

Kashi lives a middle-class lifestyle with his mom and dad. When his honest father refuses to change his testimony in order to accommodate some gangsters, they kill him and then his mother. A traumatized Kashi grows up and takes up crime as a career, is arrested and lands in Allahabad Jail. This is where he meets and befriends another convict, Shiva. The second time both men meet is at a restaurant in Mumbai where Shiva is in the company of his wife, Meena, and Kashi is with his fiancée, Anjali. Kashi has never forgotten his parents’ assailants, and has already found and killed two of them. He does locate the third killer and guns him down. Quite unknown to both men, they work for rival underworld dons and estranged brothers, Mani and Ravi Verma. And the third time the two men will meet will be at the behest of Shiva – who has an unusual mission for Kashi. The question remains will Kashi meet with Shiva, and even he if dares, will he commit himself to this mission – knowing fully well that it may be a devious plot to ensnare and then kill him.

Raja (Arjun) works with a cook Arusuvai Ambi (Vivek). Raja comes across Anjali (Kirat Bhattal), who catches his interest. She falls for Raja, but he cannot remember anything of his past. All he recollects are vague images and memories that disturb him in his sleep. After a sequence of events and a chase by rowdies, Raja collects his past.
Raja, a year ago, was Durai, the close associate of honest politician Deivanayagam (K. Viswanath). Durai, who leads a happy life with his wife Meena (Gajala) and son, is hesitant to assume the post. Anjali, a reporter, pursues him for interviews and falls in love. Deivanayagam is killed, and the blame falls on Dorai. His wife and son are murdered. Eventually, Dorai alias Raja takes on his enemies and cracks the truth behind Deivanayakam’s death. Action oozes all the way.