Lakshmipathi is a carefree youth in a village who searches for a job. His sister Kasthuri sends him a letter from Chennai to accompany her and the villagers compel him to leave the village. He leaves the village to join his sister. His brother-in-law Gopi Krishna finds him a job as a watchman. Kasthuri's daughter Dhanalakshmifalls in love with Lakshmipathi for which he reciprocates as well. Kasthuri also wants to get them married and meets an astrologer. But the astrologer informs that their horoscopes don't match and if Lakshmipathi marries Dhanalakshmi, it will lead to his death. Kasthuri is worried hearing this and decides to prevent them from getting married. Kasthuri evicts Lakshmipathi from her house and Sivaraman, who is also in love with Dhanalakshmi, accommodates him without knowing his identity. Kasthuri convinces Dhanalakshmi to forget Lakshmipathi by letting her know the truth. Dhanalakshmi acts rude towards Lakshmipathi and criticizes that he is not educated thinking that Lakshmipathi would develop hatred towards her. Sivaraman comes to know about the love between Dhanalakshmi and Lakshmipathi and decides to get them together. Dhanalakshmi meets Lakshmipathi and informs the truth about horoscopes. Lakshmipathi understands Dhanalakshmi's situation and convinces her not to believe on astrology. Lakshmipathi and Dhanalakshmi start meeting frequently without the knowledge of her mother. However, once when they are travelling together in a bike, they meet with an accident but luckily they are not injured. Kasthuri finds out this and gets furious. She believes that the accident was a signal of threat for Lakshmipathi's life. Lakshmipathi returns to his village to stay with his parents. Dhanalakshmi sends a letter mentioning that her wedding is fixed with another man. Lakshmipathi rushes to Chennai and on the day of Dhanalakshmi's wedding, he tries to convince Kasthuri to cancel the wedding and give her approval for his wedding with Dhanalakshmi. Lakshmipathi succeeds in convincing Kasthuri not to believe on horoscopes as he cites an example of their neighbour who lived happily despite an astrologer's warning. Kasthuri's agrees for the wedding and Lakshmipathi marries Dhanalakshmi, however Dhanalakshmi faints after wedding. She informs that she has already consumed poison as she was about to marry someone else. Dhanalakshmi dies in the hands of Lakshmipathi.
The film score and the soundtrack were composed by film composer Ilaiyaraaja. The soundtrack, released in 1985, features 4 tracks with lyrics written by Vaali, Vairamuthu, Gangai Amaran and Kuruvikkarambai Shanmugam. The song "Sugaraagamae" is in manirangu raaga.
