A honest cop tries to track down the brain behind a series of robberies and murders, but things turn personal when his family become pawns in the criminal's game.
Based in Mumbai, Raja (Arjun) lives a violent yet poor lifestyle along with his father, Banwarilal. He meets with and comes to the rescue of Madurai/Mahendrapur-based belle, Mahalakshmi/Madhumita (Jyotika), and both fall in love with each other. When she returns home, her dad (Ashish Vidyarthi) finds that she is in love with Raja, instantly approves of him, and asks her to invite him, which she does. Raja accordingly arrives to meet her family - and it is this arrival that will pit him against goons dispatched by none other than Mahalakshmi's dad, who wants him dead - at any and all costs.
Sidharthan is a part-time actor who was the guardian of children from his village. He rents a house posing as a rich man and is visited by his old friend Ramanujan who creates chaos. The young heiress Pooja ( "Samyuktha Varma"), who is the daughter of the owner of a palace, has a haunted past. Sidharthan faces his old lover Uma and Pooja's abusive boyfriend.
Kuzhandhaivelis the head of a happy family consisting of his wife Thilaka, daughter, mother-in-law and sister-in-law Divya. Karna, a classmate of Divya in college, enters the house as a servant after losing a bet but gradually, he and Divya fall in love. Thilaka knows about their romance but before she can inform the rest of the family, she dies in an accident. So the family now decides that Divya should wed Kuzhandhaivel.