Plot synopsis: Manathil movie revolves around Shiva, Agni and Nandini who is the daughter of the village quack, returns to the village after completing her MBBS. Her frequent meeting with Shiva results in her falling in love. After the families approve the alliance, the astrologer tells them that the two horoscopes were mismatched, and that if the duo married, it would lead to their death. heart-broken Nandini decides to commit suicide but is stopped in the nick of time by Agni. Shiva finds out later that it was Agni who had bribed the astrologer to give a false prediction since even he wanted to marry her.