A murder-mystery, in which the friend of a wealthy, elderly couple tries to bring about a reconciliation between them on the one hand, and their their estranged relatives on the other.
Mary, a nurse in a hospital, narrates the tale of how Mother Mary helped Kamakshi and her son Sundaram in Velankanni village and turned an atheist landlord to a believer by appearing before him.
Sundaram, a member of a musical band, goes to chennai to earn money for his sister's marriage but his look-alike brother Ranjit, tricks him. Ranjit carries out his illegal trade without any trouble.
Rangadurai borrows money from Somasundaram to sustain his theatre group during a financial crunch. Enmity arises between the two when Rangadurai marries Somasundaram's daughter against his wishes.
Dr. Ramesh is accused of killing his sister's husband, Bhaskar. However, while hiding from the police, he comes across his childhood love Janaki, who decides to help him.
