Ravi, the only son of Vedachalam (Baliah), has traveled on business. Returning home, he meets a young woman on the train after picking up her spilled luggage. The contents of the luggage reveal that she is his sister, from his father's teenage years. When he returns home, she is moved in and living a life of wealthy luxury. But is she really who she says she is?
A conspiring uncle separates the twin sons of his sister, the queen. One becomes his uncle's pawn while the other grows to be a brave and honest man, who inadvertently learns of his true parentage.
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.
