When Madhan Raj confronted Vaishnavi, she got angry and thought that he did not trust her. He didn't trust him and in anger he beats Ravi. However, Madhan Raj's friend Ravi informed him that Vaishnavi was having an affair with her relative Seenu, who also studied in the same college. There, he became friends with his hostel roommate Bobby ( Santhanam), and fell in love with his college mate Vaishnavi ( Sindhu Tolani), who also reciprocated his feelings upon seeing his good nature. While Madhan Kumar went to study for auditorship in Chennai, Madhan Raj moved to Coimbatore to study in an engineering college. While Madhan Kumar was brave, intelligent and practical, Madhan Raj was innocent and sentimental. They lived with their maternal uncle Puncture Pandiyan ( Goundamani) in Madhampatty in the outskirts of Coimbatore district, as both of their parents had died years ago. The story then moves to a flashback where Madhan Raj and Madhan Kumar were affectionate with each other. Thus, Madhan Kumar gets arrested.Дuring the investigation, Madhan Kumar reveals that it was his younger twin brother Madhan Raj (also Silambarasan) responsible for killing 'loose' girls under the pseudonym Manmadhan. Mythili thinks that Madhan Kumar is behind the crimes in the city and informs Deva about Madhan Kumar's whereabouts. On the next day, Mythili gets shocked to see the news that the girl whom she spotted with Madhan Kumar has gone missing. One day, Mythili finds Madhan Kumar riding a bike with a girl as pillion. The media attention turns towards the case of missing girls, and Chennai ACP Deva ( Atul Kulkarni) takes the charge to find the person behind the crimes. Whenever he intends to kill a girl by seducing her, he suffers a nosebleed. He burns the girls' corpses and stores their ashes in bottles with their respective names. However, Madhan Kumar also has another side under the pseudonym Manmadhan, in which he hunts and kills morally corrupt girls in Chennai by seducing them before rendering them unconscious using chloroform. Later on, she realizes his kind nature and they both become friends. She gets scared upon seeing Madhan Kumar one day because she happens to witness a dream of her getting raped by him. Mythili ( Jyothika), a naive woman, also learns music from the same college. Madhan Kumar ( Silambarasan) is an auditor by profession, who lives in Chennai and also learns music part-time in a college.

Manmadhane song lyrics